#1D3E5D#1D3E5D

#1D3E5D is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.067 H 248.9°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E5D
RGB	rgb(29, 62, 93)
HSL	hsl(209, 52%, 24%)
HSV	hsv(209, 69%, 36%)
CMYK	cmyk(68.8%, 33.3%, 0%, 63.5%)
CIE-LAB	lab(25.25, -0.97, -22.03)
CIE-LCH	lch(25.25, 22.05, 267.49°)
OKLab	oklab(35.48% -0.024 -0.0622)
OKLCH	oklch(35.48% 0.067 248.9)
XYZ	xyz(4.2044, 4.4964, 11.0001)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E5D #5D3C1D

analogous

#1D5D5C #1D3E5D #1D1E5D

triadic

#1D3E5D #5D1D3E #3E5D1D

tetradic

#1D3E5D #5C1D5D #5D3C1D #1E5D1D

square

#1D3E5D #5C1D5D #5D3C1D #1E5D1D

split-complementary

#1D3E5D #5D1D1E #5D5C1D

monochromatic

#071017 #0E1F2E #1D3E5D #2C5D8C #3A7CBA

Accessibility & contrast

On white

11.06

#1D3E5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1D3E5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E5D

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E5D	#FFFFFF	#000000	##FFFFFF
##1D3E5D	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313F5E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d3e5d;
/* rgb */ color: rgb(29, 62, 93);
/* oklch */ color: oklch(35.5% 0.067 248.9);

Tailwind

colors: {
  custom: {
    50: '#60738b',
    500: '#1d3e5d',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e5d;
$custom-light: #60738b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e5d",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 93
  },
  "hsl": {
    "h": 209.063,
    "s": 52.459,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35476,
    "c": 0.0667,
    "h": 248.9
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#1D3E5D

secondary

#926A44

accent

#924CDC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #1D3E5D

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

Preview Lab → · Contrast checker → · Palette generator →