#1D5383#1D5383

#1D5383 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.2% C 0.097 H 249.0°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D5383
RGB	rgb(29, 83, 131)
HSL	hsl(208, 64%, 31%)
HSV	hsv(208, 78%, 51%)
CMYK	cmyk(77.9%, 36.6%, 0%, 48.6%)
CIE-LAB	lab(34.16, 0.09, -31.97)
CIE-LCH	lch(34.16, 31.97, 270.17°)
OKLab	oklab(43.17% -0.0349 -0.091)
OKLCH	oklch(43.17% 0.097 249)
XYZ	xyz(7.6951, 8.0855, 22.6234)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5383 #834D1D

analogous

#1D8380 #1D5383 #1D2083

triadic

#1D5383 #831D53 #53831D

tetradic

#1D5383 #801D83 #834D1D #20831D

square

#1D5383 #801D83 #834D1D #20831D

split-complementary

#1D5383 #831D20 #83801D

monochromatic

#07141F #123351 #1D5383 #2873B5 #4591D6

Accessibility & contrast

On white

8.02

#1D5383 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1D5383 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5383

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5383	#FFFFFF	#000000	##FFFFFF
##1D5383	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5585

Deuteranopia (green-blind)

#2E4C82

Tritanopia (blue-blind)

#005E65

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d5383;
/* rgb */ color: rgb(29, 83, 131);
/* oklch */ color: oklch(43.2% 0.097 249.0);

Tailwind

colors: {
  custom: {
    50: '#6983a7',
    500: '#1d5383',
    950: '#000000',
  },
}

SCSS

$custom: #1d5383;
$custom-light: #6983a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5383",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 131
  },
  "hsl": {
    "h": 208.235,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.43166,
    "c": 0.09744,
    "h": 249
  },
  "luminance": 0.08086
}

Semantic roles & 50–950 ramp

primary

#1D5383

secondary

#B67B46

accent

#8F41E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D5383

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

Preview Lab → · Contrast checker → · Palette generator →