#1D4E5A#1D4E5A

#1D4E5A is a dark, muted cyan. Relative luminance 0.064; OKLCH L 39.6% C 0.056 H 216.6°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E5A
RGB	rgb(29, 78, 90)
HSL	hsl(192, 51%, 23%)
HSV	hsv(192, 68%, 35%)
CMYK	cmyk(67.8%, 13.3%, 0%, 64.7%)
CIE-LAB	lab(30.51, -12.21, -11.95)
CIE-LCH	lch(30.51, 17.08, 224.38°)
OKLab	oklab(39.62% -0.0446 -0.0332)
OKLCH	oklch(39.62% 0.056 216.6)
XYZ	xyz(5.0758, 6.4476, 10.6479)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E5A #5A291D

analogous

#1D5A47 #1D4E5A #1D2F5A

triadic

#1D4E5A #5A1D4E #4E5A1D

tetradic

#1D4E5A #471D5A #5A291D #2F5A1D

square

#1D4E5A #471D5A #5A291D #2F5A1D

split-complementary

#1D4E5A #5A1D2F #5A471D

monochromatic

#071417 #0E262C #1D4E5A #2C7688 #3B9EB7

Accessibility & contrast

On white

9.17

#1D4E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1D4E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E5A

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E5A	#FFFFFF	#000000	##FFFFFF
##1D4E5A	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5B

Deuteranopia (green-blind)

#3D455A

Tritanopia (blue-blind)

#005252

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d4e5a;
/* rgb */ color: rgb(29, 78, 90);
/* oklch */ color: oklch(39.6% 0.056 216.6);

Tailwind

colors: {
  custom: {
    50: '#617f88',
    500: '#1d4e5a',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e5a;
$custom-light: #617f88;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e5a",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 90
  },
  "hsl": {
    "h": 191.803,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.39615,
    "c": 0.05564,
    "h": 216.6
  },
  "luminance": 0.06448
}

Semantic roles & 50–950 ramp

primary

#1D4E5A

secondary

#8F5244

accent

#694DDB

background

#F6F7F8

surface

#EBEEEF

border

#C6C9CA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1D4E5A

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

Preview Lab → · Contrast checker → · Palette generator →