#1D5388#1D5388

#1D5388 is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.5% C 0.104 H 251.2°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D5388
RGB	rgb(29, 83, 136)
HSL	hsl(210, 65%, 32%)
HSV	hsv(210, 79%, 53%)
CMYK	cmyk(78.7%, 39%, 0%, 46.7%)
CIE-LAB	lab(34.45, 2.07, -34.59)
CIE-LCH	lch(34.45, 34.65, 273.42°)
OKLab	oklab(43.48% -0.0335 -0.0986)
OKLCH	oklch(43.48% 0.104 251.2)
XYZ	xyz(8.0422, 8.2244, 24.4514)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5388 #88521D

analogous

#1D8888 #1D5388 #1D1D88

triadic

#1D5388 #881D53 #53881D

tetradic

#1D5388 #881D88 #88521D #1D881D

square

#1D5388 #881D88 #88521D #1D881D

split-complementary

#1D5388 #881D1D #88881D

monochromatic

#071523 #123456 #1D5388 #2872BA #4890D8

Accessibility & contrast

On white

7.94

#1D5388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1D5388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5388

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5388	#FFFFFF	#000000	##FFFFFF
##1D5388	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A568A

Deuteranopia (green-blind)

#2A4D87

Tritanopia (blue-blind)

#006067

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d5388;
/* rgb */ color: rgb(29, 83, 136);
/* oklch */ color: oklch(43.5% 0.104 251.2);

Tailwind

colors: {
  custom: {
    50: '#6a83ab',
    500: '#1d5388',
    950: '#000000',
  },
}

SCSS

$custom: #1d5388;
$custom-light: #6a83ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5388",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 136
  },
  "hsl": {
    "h": 209.72,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43483,
    "c": 0.10417,
    "h": 251.2
  },
  "luminance": 0.08225
}

Semantic roles & 50–950 ramp

primary

#1D5388

secondary

#BA8047

accent

#9340E8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1D5388

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

Preview Lab → · Contrast checker → · Palette generator →