#1D5381#1D5381

#1D5381 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.0% C 0.095 H 248.0°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#1D5381
RGB	rgb(29, 83, 129)
HSL	hsl(208, 63%, 31%)
HSV	hsv(208, 78%, 51%)
CMYK	cmyk(77.5%, 35.7%, 0%, 49.4%)
CIE-LAB	lab(34.05, -0.69, -30.92)
CIE-LCH	lch(34.05, 30.93, 268.72°)
OKLab	oklab(43.04% -0.0355 -0.0879)
OKLCH	oklch(43.04% 0.095 248)
XYZ	xyz(7.5609, 8.0318, 21.9164)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5381 #814B1D

analogous

#1D817D #1D5381 #1D2181

triadic

#1D5381 #811D53 #53811D

tetradic

#1D5381 #7D1D81 #814B1D #21811D

square

#1D5381 #7D1D81 #814B1D #21811D

split-complementary

#1D5381 #811D21 #817D1D

monochromatic

#07131D #12334F #1D5381 #2873B3 #4492D5

Accessibility & contrast

On white

8.06

#1D5381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1D5381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5381

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5381	#FFFFFF	#000000	##FFFFFF
##1D5381	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5583

Deuteranopia (green-blind)

#2F4C80

Tritanopia (blue-blind)

#005E64

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d5381;
/* rgb */ color: rgb(29, 83, 129);
/* oklch */ color: oklch(43.0% 0.095 248.0);

Tailwind

colors: {
  custom: {
    50: '#6883a6',
    500: '#1d5381',
    950: '#000000',
  },
}

SCSS

$custom: #1d5381;
$custom-light: #6883a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5381",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 129
  },
  "hsl": {
    "h": 207.6,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.43043,
    "c": 0.09478,
    "h": 248
  },
  "luminance": 0.08033
}

Semantic roles & 50–950 ramp

primary

#1D5381

secondary

#B47846

accent

#8D41E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D5381

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

Preview Lab → · Contrast checker → · Palette generator →