#182C57#182C57

#182C57 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.2% C 0.082 H 263.5°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#182C57
RGB	rgb(24, 44, 87)
HSL	hsl(221, 57%, 22%)
HSV	hsv(221, 72%, 34%)
CMYK	cmyk(72.4%, 49.4%, 0%, 65.9%)
CIE-LAB	lab(18.73, 8.27, -28.44)
CIE-LCH	lch(18.73, 29.62, 286.22°)
OKLab	oklab(30.22% -0.0092 -0.0813)
OKLCH	oklch(30.22% 0.082 263.5)
XYZ	xyz(2.9971, 2.6834, 9.3750)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182C57 #574318

analogous

#184C57 #182C57 #231857

triadic

#182C57 #57182C #2C5718

tetradic

#182C57 #57184C #574318 #185723

square

#182C57 #57184C #574318 #185723

split-complementary

#182C57 #572318 #4C5718

monochromatic

#070C18 #0B1427 #182C57 #254487 #325DB7

Accessibility & contrast

On white

13.66

#182C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#182C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182C57

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182C57	#FFFFFF	#000000	##FFFFFF
##182C57	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173159

Deuteranopia (green-blind)

#0B2B56

Tritanopia (blue-blind)

#00363D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182c57;
/* rgb */ color: rgb(24, 44, 87);
/* oklch */ color: oklch(30.2% 0.082 263.5);

Tailwind

colors: {
  custom: {
    50: '#5d6487',
    500: '#182c57',
    950: '#000000',
  },
}

SCSS

$custom: #182c57;
$custom-light: #5d6487;
$custom-dark: #000000;

JSON

{
  "hex": "#182c57",
  "rgb": {
    "r": 24,
    "g": 44,
    "b": 87
  },
  "hsl": {
    "h": 220.952,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.30217,
    "c": 0.08186,
    "h": 263.5
  },
  "luminance": 0.02684
}

Semantic roles & 50–950 ramp

primary

#182C57

secondary

#8E743D

accent

#B048E0

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182C57

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

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