#1D3752#1D3752

#1D3752 is a dark, muted cyan. Relative luminance 0.036; OKLCH L 33.0% C 0.058 H 250.8°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D3752
RGB	rgb(29, 55, 82)
HSL	hsl(211, 48%, 22%)
HSV	hsv(211, 65%, 32%)
CMYK	cmyk(64.6%, 32.9%, 0%, 67.8%)
CIE-LAB	lab(22.31, -0.46, -19.41)
CIE-LCH	lch(22.31, 19.42, 268.63°)
OKLab	oklab(32.97% -0.019 -0.0547)
OKLCH	oklch(32.97% 0.058 250.8)
XYZ	xyz(3.3953, 3.6025, 8.4974)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3752 #52381D

analogous

#1D5252 #1D3752 #1E1D52

triadic

#1D3752 #521D37 #37521D

tetradic

#1D3752 #521D52 #52381D #1D521E

square

#1D3752 #521D52 #52381D #1D521E

split-complementary

#1D3752 #521E1D #52521D

monochromatic

#080F17 #0D1925 #1D3752 #2D557F #3D74AC

Accessibility & contrast

On white

12.21

#1D3752 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1D3752 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3752

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3752	#FFFFFF	#000000	##FFFFFF
##1D3752	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3853

Deuteranopia (green-blind)

#253351

Tritanopia (blue-blind)

#003D41

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d3752;
/* rgb */ color: rgb(29, 55, 82);
/* oklch */ color: oklch(33.0% 0.058 250.8);

Tailwind

colors: {
  custom: {
    50: '#5e6d82',
    500: '#1d3752',
    950: '#000000',
  },
}

SCSS

$custom: #1d3752;
$custom-light: #5e6d82;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3752",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 82
  },
  "hsl": {
    "h": 210.566,
    "s": 47.748,
    "l": 21.765
  },
  "oklch": {
    "l": 0.32972,
    "c": 0.05793,
    "h": 250.8
  },
  "luminance": 0.03603
}

Semantic roles & 50–950 ramp

primary

#1D3752

secondary

#876644

accent

#9550D7

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05070A

muted

#797A7C

Preview Lab

Preview with #1D3752

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

Preview Lab → · Contrast checker → · Palette generator →