#182D4C#182D4C

#182D4C is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.7% C 0.063 H 258.0°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#182D4C
RGB	rgb(24, 45, 76)
HSL	hsl(216, 52%, 20%)
HSV	hsv(216, 68%, 30%)
CMYK	cmyk(68.4%, 40.8%, 0%, 70.2%)
CIE-LAB	lab(18.33, 3.04, -21.68)
CIE-LCH	lch(18.33, 21.89, 277.98°)
OKLab	oklab(29.68% -0.013 -0.0615)
OKLCH	oklch(29.68% 0.063 258)
XYZ	xyz(2.6191, 2.5925, 7.1985)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D4C #4C3718

analogous

#18474C #182D4C #1D184C

triadic

#182D4C #4C182D #2D4C18

tetradic

#182D4C #4C1847 #4C3718 #184C1D

square

#182D4C #4C1847 #4C3718 #184C1D

split-complementary

#182D4C #4C1D18 #474C18

monochromatic

#070E17 #09111D #182D4C #27497B #3564A9

Accessibility & contrast

On white

13.83

#182D4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#182D4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D4C

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D4C	#FFFFFF	#000000	##FFFFFF
##182D4C	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202F4D

Deuteranopia (green-blind)

#192A4B

Tritanopia (blue-blind)

#003438

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #182d4c;
/* rgb */ color: rgb(24, 45, 76);
/* oklch */ color: oklch(29.7% 0.063 258.0);

Tailwind

colors: {
  custom: {
    50: '#5b657e',
    500: '#182d4c',
    950: '#000000',
  },
}

SCSS

$custom: #182d4c;
$custom-light: #5b657e;
$custom-dark: #000000;

JSON

{
  "hex": "#182d4c",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 76
  },
  "hsl": {
    "h": 215.769,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29675,
    "c": 0.06287,
    "h": 258
  },
  "luminance": 0.02593
}

Semantic roles & 50–950 ramp

primary

#182D4C

secondary

#83673D

accent

#A24CDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04050A

muted

#797A7C

Preview Lab

Preview with #182D4C

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

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