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Tailwind CSS palette

Blue 800

blue-800 · #1E40AF

HEX

#1E40AF

RGB

rgb(30, 64, 175)

CMYK

cmyk(83%, 63%, 0%, 31%)

HSL

hsl(226, 71%, 40%)

LAB

lab(31.9, 30.4, -62.3)

What is Blue 800?

Blue 800 is the blue-800 reference in the Tailwind CSS palette. Its sRGB value is #1E40AF (rgb 30, 64, 175). It sits in the blue family. The default color palette shipped with Tailwind CSS v3 by Tailwind Labs. 22 color families across 11 lightness steps (50 to 950). See disclaimer for accuracy and trademark notes.

Accessibility

WCAG 2.1 contrast checks for Blue 800 as a background.

Black text on this color

Sample text · 2.41 : 1
AA Normal
AA Large
AAA Normal
AAA Large

White text on this color

Sample text · 8.72 : 1
AA Normal
AA Large
AAA Normal
AAA Large

Shades, tints & tonal scale of Blue 800

An 11-step tonal scale derived from Blue 800 (#1E40AF). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.

Copied #EDF0F9

50

#EDF0F9

#EDF0F9

Copied #DBE0F2

100

#DBE0F2

#DBE0F2

Copied #B7C2E5

200

#B7C2E5

#B7C2E5

Copied #8FA0D7

300

#8FA0D7

#8FA0D7

Copied #5670C3

400

#5670C3

#5670C3

Copied #1E40AF

500

#1E40AF

#1E40AF

Copied #1A3695

600

#1A3695

#1A3695

Copied #142A72

700

#142A72

#142A72

Copied #0E1D4F

800

#0E1D4F

#0E1D4F

Copied #08102C

900

#08102C

#08102C

Copied #040815

950

#040815

#040815

Lighter tints (mixed with white)

Copied #707ABE

15%

#707ABE

Copied #979DCB

30%

#979DCB

Copied #B4B8D8

45%

#B4B8D8

Copied #CCCEE3

60%

#CCCEE3

Copied #E1E2EE

75%

#E1E2EE

Darker shades (mixed with black)

Copied #1B3BA3

15%

#1B3BA3

Copied #183595

30%

#183595

Copied #142F85

45%

#142F85

Copied #102773

60%

#102773

Copied #0B1E5C

75%

#0B1E5C

Color harmonies for Blue 800

Classic color-theory harmonies derived from rotating the hue of Blue 800. Use these to build accent palettes, brand systems, and accessible UI color pairings.

Complementary

180° opposite — strongest contrast

Copied #1E40AF

#1E40AF

#1E40AF

Copied #AE8D1E

#AE8D1E

#AE8D1E

Triadic

Three colors 120° apart

Copied #1E40AF

#1E40AF

#1E40AF

Copied #AE1E3F

#AE1E3F

#AE1E3F

Copied #3FAE1E

#3FAE1E

#3FAE1E

Analogous

Two neighbors ±30° on the wheel

Copied #1E88AE

#1E88AE

#1E88AE

Copied #1E40AF

#1E40AF

#1E40AF

Copied #441EAE

#441EAE

#441EAE

Split-complementary

Base + two colors flanking its complement

Copied #1E40AF

#1E40AF

#1E40AF

Copied #AE441E

#AE441E

#AE441E

Copied #88AE1E

#88AE1E

#88AE1E

Tetradic

Two complementary pairs

Copied #1E40AF

#1E40AF

#1E40AF

Copied #8D1EAE

#8D1EAE

#8D1EAE

Copied #AE8D1E

#AE8D1E

#AE8D1E

Copied #3FAE1E

#3FAE1E

#3FAE1E

Square

Four colors evenly spaced 90° apart

Copied #1E40AF

#1E40AF

#1E40AF

Copied #AE1E88

#AE1E88

#AE1E88

Copied #AE8D1E

#AE8D1E

#AE8D1E

Copied #1EAE44

#1EAE44

#1EAE44

Blue 800 in every color space

Full conversion of Blue 800 across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.

HEX

#1E40AF

RGB

rgb(30, 64, 175)

CMYK

cmyk(83%, 63%, 0%, 31%)

HSL

hsl(226, 71%, 40%)

HSV

hsv(226, 83%, 69%)

HWB

hwb(226 12% 31%)

CIE Lab

lab(31.9 30.4 -62.3)

OKLCH

oklch(42.4% 0.181 265.6)

XYZ (D65)

xyz(10.10, 7.04, 41.37)

Copy-ready code for Blue 800

Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.

CSS

color: #1E40AF;
background-color: #1E40AF;

CSS variable

:root {
  --color-blue-800: #1E40AF;
}

Tailwind config

// tailwind.config.js
colors: {
  'blue-800': '#1E40AF',
}

Sass

$color-blue-800: #1E40AF;

Swift UIColor

UIColor(red: 0.118, green: 0.251, blue: 0.686, alpha: 1.0)

Android XML

<color name="blue-800">#1E40AF</color>

Closest match in every color system

The nearest Blue 800 equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.

Closest in Tailwind CSS palette

Top 6 ΔE2000-closest entries within the same collection.

Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.

Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.

Copied #063971

RAL 5017

#063971

Traffic blue

Copied #354D73

RAL 5000

#354D73

Violet blue

Copied #1B5583

RAL 5019

#1B5583

Capri blue

Copied #3E5F8A

RAL 5007

#3E5F8A

Brilliant blue

Copied #49678D

RAL 5023

#49678D

Distant blue

Copied #1D334A

RAL 5020

#1D334A

Ocean blue

FAQ about Blue 800

What is the HEX code for Blue 800?

Blue 800 (blue-800) has the HEX code #1E40AF. In RGB it is rgb(30, 64, 175), and in CMYK it is cmyk(83%, 63%, 0%, 31%).

What is the OKLCH value of Blue 800?

Blue 800 converts to oklch(0.424 0.181 265.6). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.

Is Blue 800 accessible for body text?

Used as a background, Blue 800 has a contrast ratio of 2.41:1 with black text and 8.72:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use white text and verify in real UI context.

What is the closest Pantone to Blue 800?

The closest Pantone reference to Blue 800 by ΔE2000 perceptual distance is Pantone 287 C (#003DA5). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.

What is the closest RAL color to Blue 800?

The closest RAL Classic reference to Blue 800 by ΔE2000 distance is RAL 5017 (Traffic blue, #063971). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.

What is the complementary color of Blue 800?

The complementary color (180° opposite on the HSL color wheel) of Blue 800 is #AE8D1E. Use it for high-contrast accents, error states, or call-to-action pairings.

Data provenance & source

Tailwind CSS default palette (v3)

The default color palette shipped with Tailwind CSS v3 by Tailwind Labs Inc. Use as a reference for design tokens, web color systems, and Tailwind-based design conversations. Names like 'blue-500' are the project's own naming convention.

Source type
derived
Confidence
high
License
MIT
Last reviewed
2026-05-24

Workflow tags

tailwind
design-token
web-system
blue

Tailwind palette values are designed for digital interfaces under sRGB. For print, convert to a process-appropriate value and proof against the substrate; do not rely on sRGB CMYK conversion for color-critical print work.

Tailwind CSS palette · Blue 800 — #1E40AF | PantoneTools