#1D4E83#1D4E83

#1D4E83 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.9% C 0.103 H 253.0°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E83
RGB	rgb(29, 78, 131)
HSL	hsl(211, 64%, 31%)
HSV	hsv(211, 78%, 51%)
CMYK	cmyk(77.9%, 40.5%, 0%, 48.6%)
CIE-LAB	lab(32.59, 3.37, -34.47)
CIE-LCH	lch(32.59, 34.64, 275.58°)
OKLab	oklab(41.93% -0.03 -0.0984)
OKLCH	oklch(41.93% 0.103 253)
XYZ	xyz(7.3263, 7.3478, 22.5005)
Luminance	0.0735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E83 #83521D

analogous

#1D8183 #1D4E83 #1F1D83

triadic

#1D4E83 #831D4E #4E831D

tetradic

#1D4E83 #831D81 #83521D #1D831F

square

#1D4E83 #831D81 #83521D #1D831F

split-complementary

#1D4E83 #831F1D #81831D

monochromatic

#07121F #123051 #1D4E83 #286CB5 #458AD6

Accessibility & contrast

On white

8.50

#1D4E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1D4E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E83

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E83	#FFFFFF	#000000	##FFFFFF
##1D4E83	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355285

Deuteranopia (green-blind)

#254882

Tritanopia (blue-blind)

#005B62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4e83;
/* rgb */ color: rgb(29, 78, 131);
/* oklch */ color: oklch(41.9% 0.103 253.0);

Tailwind

colors: {
  custom: {
    50: '#697fa7',
    500: '#1d4e83',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e83;
$custom-light: #697fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e83",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 131
  },
  "hsl": {
    "h": 211.176,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41934,
    "c": 0.10286,
    "h": 253
  },
  "luminance": 0.07349
}

Semantic roles & 50–950 ramp

primary

#1D4E83

secondary

#B68046

accent

#9741E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D4E83

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

Preview Lab → · Contrast checker → · Palette generator →