Indigo 1
indigo-1 · #DBE4FF
HEX
#DBE4FF
RGB
rgb(219, 228, 255)
CMYK
cmyk(14%, 11%, 0%, 0%)
HSL
hsl(225, 100%, 93%)
LAB
lab(90.7, 2.3, -14.1)
What is Indigo 1?
Indigo 1 is the indigo-1 reference in the Open Color. Its sRGB value is #DBE4FF (rgb 219, 228, 255). It sits in the blue family. Open Color, an open-source color palette by Heeyeun designed for UI work. 13 hues across 10 shades (0 to 9) tuned for screen legibility and accessibility. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Indigo 1 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Indigo 1
An 11-step tonal scale derived from Indigo 1 (#DBE4FF). 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.
50
#FCFDFF
#FCFDFF
100
#F9FBFF
#F9FBFF
200
#F3F6FF
#F3F6FF
300
#EDF2FF
#EDF2FF
400
#E4EBFF
#E4EBFF
500
#DBE4FF
#DBE4FF
600
#BAC2D9
#BAC2D9
700
#8E94A6
#8E94A6
800
#636773
#636773
900
#373940
#373940
950
#1A1B1F
#1A1B1F
Lighter tints (mixed with white)
15%
#E1E8FF
30%
#E7EDFF
45%
#ECF1FF
60%
#F1F5FF
75%
#F7F9FF
Darker shades (mixed with black)
15%
#CCD4ED
30%
#BBC3DA
45%
#A8AFC4
60%
#9197AA
75%
#757A89
Color harmonies for Indigo 1
Classic color-theory harmonies derived from rotating the hue of Indigo 1. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#DBE4FF
#DBE4FF
#FFF6DB
#FFF6DB
Triadic
Three colors 120° apart
#DBE4FF
#DBE4FF
#FFDBE4
#FFDBE4
#E4FFDB
#E4FFDB
Analogous
Two neighbors ±30° on the wheel
#DBF6FF
#DBF6FF
#DBE4FF
#DBE4FF
#E4DBFF
#E4DBFF
Split-complementary
Base + two colors flanking its complement
#DBE4FF
#DBE4FF
#FFE4DB
#FFE4DB
#F6FFDB
#F6FFDB
Tetradic
Two complementary pairs
#DBE4FF
#DBE4FF
#F6DBFF
#F6DBFF
#FFF6DB
#FFF6DB
#E4FFDB
#E4FFDB
Square
Four colors evenly spaced 90° apart
#DBE4FF
#DBE4FF
#FFDBF6
#FFDBF6
#FFF6DB
#FFF6DB
#DBFFE4
#DBFFE4
Indigo 1 in every color space
Full conversion of Indigo 1 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
#DBE4FF
RGB
rgb(219, 228, 255)
CMYK
cmyk(14%, 11%, 0%, 0%)
HSL
hsl(225, 100%, 93%)
HSV
hsv(225, 14%, 100%)
HWB
hwb(225 86% 0%)
CIE Lab
lab(90.7 2.3 -14.1)
OKLCH
oklch(92.0% 0.038 271.0)
XYZ (D65)
xyz(75.00, 77.77, 105.65)
Copy-ready code for Indigo 1
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: #DBE4FF;
background-color: #DBE4FF;CSS variable
:root {
--color-indigo-1: #DBE4FF;
}Tailwind config
// tailwind.config.js
colors: {
'indigo-1': '#DBE4FF',
}Sass
$color-indigo-1: #DBE4FF;Swift UIColor
UIColor(red: 0.859, green: 0.894, blue: 1.000, alpha: 1.0)Android XML
<color name="indigo-1">#DBE4FF</color>Closest match in every color system
The nearest Indigo 1 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 Open Color
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 7035
#D7D7D7
Light grey
RAL 9018
#D7D7D7
Papyrus white
RAL 9003
#F4F4F4
Signal white
RAL 9016
#F6F6F6
Traffic white
RAL 9010
#FFFFFF
Pure white
RAL 7040
#9DA1AA
Window grey
FAQ about Indigo 1
What is the HEX code for Indigo 1?
Indigo 1 (indigo-1) has the HEX code #DBE4FF. In RGB it is rgb(219, 228, 255), and in CMYK it is cmyk(14%, 11%, 0%, 0%).
What is the OKLCH value of Indigo 1?
Indigo 1 converts to oklch(0.920 0.038 271.0). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Indigo 1 accessible for body text?
Used as a background, Indigo 1 has a contrast ratio of 16.55:1 with black text and 1.27:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Indigo 1?
The closest Pantone reference to Indigo 1 by ΔE2000 perceptual distance is Pantone 290 C (#B9D9EB). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Indigo 1?
The closest RAL Classic reference to Indigo 1 by ΔE2000 distance is RAL 7035 (Light grey, #D7D7D7). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Indigo 1?
The complementary color (180° opposite on the HSL color wheel) of Indigo 1 is #FFF6DB. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
Open Color (Yeun)
Open Color, an open-source color palette by Heeyeun designed for UI designers and developers. 13 hues across 10 shades. Use as a designer-friendly palette alternative to Tailwind. Values are intentionally chosen for UI legibility and accessibility.
- Source type
- derived
- Confidence
- high
- License
- MIT
- Last reviewed
- 2026-05-24
Workflow tags
Open Color values are tuned for digital UI. For print, treat as a starting point and proof against the substrate.