#1D539D#1D539D

#1D539D is a dark, vivid cyan. Relative luminance 0.089; OKLCH L 44.9% C 0.133 H 257.5°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#1D539D
RGB	rgb(29, 83, 157)
HSL	hsl(215, 69%, 36%)
HSV	hsv(215, 82%, 62%)
CMYK	cmyk(81.5%, 47.1%, 0%, 38.4%)
CIE-LAB	lab(35.75, 10.45, -45.24)
CIE-LCH	lch(35.75, 46.43, 283.00°)
OKLab	oklab(44.92% -0.0288 -0.1299)
OKLCH	oklch(44.92% 0.133 257.5)
XYZ	xyz(9.6835, 8.8809, 33.0956)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D539D #9D671D

analogous

#1D939D #1D539D #271D9D

triadic

#1D539D #9D1D53 #539D1D

tetradic

#1D539D #9D1D93 #9D671D #1D9D27

square

#1D539D #9D1D93 #9D671D #1D9D27

split-complementary

#1D539D #9D271D #939D1D

monochromatic

#0A1C36 #133869 #1D539D #276ED1 #558FE0

Accessibility & contrast

On white

7.56

#1D539D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1D539D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D539D

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D539D	#FFFFFF	#000000	##FFFFFF
##1D539D	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5AA0

Deuteranopia (green-blind)

#074F9C

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d539d;
/* rgb */ color: rgb(29, 83, 157);
/* oklch */ color: oklch(44.9% 0.133 257.5);

Tailwind

colors: {
  custom: {
    50: '#6f82ba',
    500: '#1d539d',
    950: '#000000',
  },
}

SCSS

$custom: #1d539d;
$custom-light: #6f82ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d539d",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 157
  },
  "hsl": {
    "h": 214.688,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44923,
    "c": 0.13308,
    "h": 257.5
  },
  "luminance": 0.08882
}

Semantic roles & 50–950 ramp

primary

#1D539D

secondary

#C39453

accent

#A23CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1D539D

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

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