#1D4C74#1D4C74

#1D4C74 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.5% C 0.084 H 247.5°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C74
RGB	rgb(29, 76, 116)
HSL	hsl(208, 60%, 28%)
HSV	hsv(208, 75%, 45%)
CMYK	cmyk(75%, 34.5%, 0%, 54.5%)
CIE-LAB	lab(31.09, -1.25, -27.51)
CIE-LCH	lch(31.09, 27.54, 267.40°)
OKLab	oklab(40.48% -0.0323 -0.078)
OKLCH	oklch(40.48% 0.084 247.5)
XYZ	xyz(6.2423, 6.6904, 17.4820)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C74 #74451D

analogous

#1D7470 #1D4C74 #1D2074

triadic

#1D4C74 #741D4C #4C741D

tetradic

#1D4C74 #701D74 #74451D #20741D

square

#1D4C74 #701D74 #74451D #20741D

split-complementary

#1D4C74 #741D20 #74701D

monochromatic

#061018 #112C43 #1D4C74 #296CA5 #3D8CCE

Accessibility & contrast

On white

8.98

#1D4C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1D4C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C74

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C74	#FFFFFF	#000000	##FFFFFF
##1D4C74	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4E76

Deuteranopia (green-blind)

#2E4573

Tritanopia (blue-blind)

#00565A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4c74;
/* rgb */ color: rgb(29, 76, 116);
/* oklch */ color: oklch(40.5% 0.084 247.5);

Tailwind

colors: {
  custom: {
    50: '#657d9c',
    500: '#1d4c74',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c74;
$custom-light: #657d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c74",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 116
  },
  "hsl": {
    "h": 207.586,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40482,
    "c": 0.08444,
    "h": 247.5
  },
  "luminance": 0.06691
}

Semantic roles & 50–950 ramp

primary

#1D4C74

secondary

#A87245

accent

#8E45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4C74

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

Preview Lab → · Contrast checker → · Palette generator →