#1D5588#1D5588

#1D5588 is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.0% C 0.102 H 249.7°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D5588
RGB	rgb(29, 85, 136)
HSL	hsl(209, 65%, 32%)
HSV	hsv(209, 79%, 53%)
CMYK	cmyk(78.7%, 37.5%, 0%, 46.7%)
CIE-LAB	lab(35.07, 0.77, -33.59)
CIE-LCH	lch(35.07, 33.60, 271.31°)
OKLab	oklab(43.97% -0.0355 -0.0957)
OKLCH	oklch(43.97% 0.102 249.7)
XYZ	xyz(8.1974, 8.5348, 24.5031)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5588 #88501D

analogous

#1D8885 #1D5588 #1D2088

triadic

#1D5588 #881D55 #55881D

tetradic

#1D5588 #851D88 #88501D #20881D

square

#1D5588 #851D88 #88501D #20881D

split-complementary

#1D5588 #881D20 #88851D

monochromatic

#071623 #123556 #1D5588 #2875BA #4893D8

Accessibility & contrast

On white

7.76

#1D5588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1D5588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5588

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5588	#FFFFFF	#000000	##FFFFFF
##1D5588	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D588A

Deuteranopia (green-blind)

#2D4E87

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d5588;
/* rgb */ color: rgb(29, 85, 136);
/* oklch */ color: oklch(44.0% 0.102 249.7);

Tailwind

colors: {
  custom: {
    50: '#6a84ab',
    500: '#1d5588',
    950: '#000000',
  },
}

SCSS

$custom: #1d5588;
$custom-light: #6a84ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5588",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 136
  },
  "hsl": {
    "h": 208.598,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43975,
    "c": 0.10203,
    "h": 249.7
  },
  "luminance": 0.08536
}

Semantic roles & 50–950 ramp

primary

#1D5588

secondary

#BA7E47

accent

#9040E8

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1D5588

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →