#1D455D#1D455D

#1D455D is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.3% C 0.061 H 237.8°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1D455D
RGB	rgb(29, 69, 93)
HSL	hsl(203, 52%, 24%)
HSV	hsv(203, 69%, 36%)
CMYK	cmyk(68.8%, 25.8%, 0%, 63.5%)
CIE-LAB	lab(27.59, -5.56, -18.37)
CIE-LCH	lch(27.59, 19.19, 253.16°)
OKLab	oklab(37.33% -0.0324 -0.0516)
OKLCH	oklch(37.33% 0.061 237.8)
XYZ	xyz(4.6098, 5.3073, 11.1353)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D455D #5D351D

analogous

#1D5D55 #1D455D #1D255D

triadic

#1D455D #5D1D45 #455D1D

tetradic

#1D455D #551D5D #5D351D #255D1D

square

#1D455D #551D5D #5D351D #255D1D

split-complementary

#1D455D #5D1D25 #5D551D

monochromatic

#071117 #0E222E #1D455D #2C688C #3A8ABA

Accessibility & contrast

On white

10.19

#1D455D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D455D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D455D

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D455D	#FFFFFF	#000000	##FFFFFF
##1D455D	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A455E

Deuteranopia (green-blind)

#313E5D

Tritanopia (blue-blind)

#004B4D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d455d;
/* rgb */ color: rgb(29, 69, 93);
/* oklch */ color: oklch(37.3% 0.061 237.8);

Tailwind

colors: {
  custom: {
    50: '#61788b',
    500: '#1d455d',
    950: '#000000',
  },
}

SCSS

$custom: #1d455d;
$custom-light: #61788b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d455d",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 93
  },
  "hsl": {
    "h": 202.5,
    "s": 52.459,
    "l": 23.922
  },
  "oklch": {
    "l": 0.37327,
    "c": 0.06092,
    "h": 237.8
  },
  "luminance": 0.05308
}

Semantic roles & 50–950 ramp

primary

#1D455D

secondary

#926144

accent

#824CDC

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05090C

muted

#7A7B7D

Preview Lab

Preview with #1D455D

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

Preview Lab → · Contrast checker → · Palette generator →