#1D4781#1D4781

#1D4781 is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.108 H 257.3°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#1D4781
RGB	rgb(29, 71, 129)
HSL	hsl(215, 63%, 31%)
HSV	hsv(215, 78%, 51%)
CMYK	cmyk(77.5%, 45%, 0%, 49.4%)
CIE-LAB	lab(30.28, 7.26, -36.91)
CIE-LCH	lch(30.28, 37.62, 281.13°)
OKLab	oklab(40.1% -0.0238 -0.1057)
OKLCH	oklch(40.1% 0.108 257.3)
XYZ	xyz(6.7209, 6.3519, 21.6364)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4781 #81571D

analogous

#1D7981 #1D4781 #251D81

triadic

#1D4781 #811D47 #47811D

tetradic

#1D4781 #811D79 #81571D #1D8125

square

#1D4781 #811D79 #81571D #1D8125

split-complementary

#1D4781 #81251D #79811D

monochromatic

#07101D #122B4F #1D4781 #2863B3 #4481D5

Accessibility & contrast

On white

9.25

#1D4781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1D4781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4781

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4781	#FFFFFF	#000000	##FFFFFF
##1D4781	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4C83

Deuteranopia (green-blind)

#174380

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d4781;
/* rgb */ color: rgb(29, 71, 129);
/* oklch */ color: oklch(40.1% 0.108 257.3);

Tailwind

colors: {
  custom: {
    50: '#6879a6',
    500: '#1d4781',
    950: '#000000',
  },
}

SCSS

$custom: #1d4781;
$custom-light: #6879a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4781",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 129
  },
  "hsl": {
    "h": 214.8,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.40103,
    "c": 0.10832,
    "h": 257.3
  },
  "luminance": 0.06353
}

Semantic roles & 50–950 ramp

primary

#1D4781

secondary

#B48646

accent

#A141E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1D4781

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

Preview Lab → · Contrast checker → · Palette generator →