#1D588D#1D588D

#1D588D is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.0% C 0.106 H 249.5°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#1D588D
RGB	rgb(29, 88, 141)
HSL	hsl(208, 66%, 33%)
HSV	hsv(208, 79%, 55%)
CMYK	cmyk(79.4%, 37.6%, 0%, 44.7%)
CIE-LAB	lab(36.30, 0.80, -34.70)
CIE-LCH	lch(36.30, 34.71, 271.33°)
OKLab	oklab(45.03% -0.0369 -0.0989)
OKLCH	oklch(45.03% 0.106 249.5)
XYZ	xyz(8.8023, 9.1627, 26.4988)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D588D #8D521D

analogous

#1D8D8A #1D588D #1D208D

triadic

#1D588D #8D1D58 #588D1D

tetradic

#1D588D #8A1D8D #8D521D #208D1D

square

#1D588D #8A1D8D #8D521D #208D1D

split-complementary

#1D588D #8D1D20 #8D8A1D

monochromatic

#081927 #13385A #1D588D #2778C0 #4B96DA

Accessibility & contrast

On white

7.41

#1D588D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#1D588D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D588D

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D588D	#FFFFFF	#000000	##FFFFFF
##1D588D	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B8F

Deuteranopia (green-blind)

#2E518C

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d588d;
/* rgb */ color: rgb(29, 88, 141);
/* oklch */ color: oklch(45.0% 0.106 249.5);

Tailwind

colors: {
  custom: {
    50: '#6b86ae',
    500: '#1d588d',
    950: '#000000',
  },
}

SCSS

$custom: #1d588d;
$custom-light: #6b86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d588d",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 141
  },
  "hsl": {
    "h": 208.393,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.45026,
    "c": 0.10553,
    "h": 249.5
  },
  "luminance": 0.09164
}

Semantic roles & 50–950 ramp

primary

#1D588D

secondary

#BC804A

accent

#8F3FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1D588D

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

Preview Lab → · Contrast checker → · Palette generator →