#182B57#182B57

#182B57 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.0% C 0.083 H 264.4°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#182B57
RGB	rgb(24, 43, 87)
HSL	hsl(222, 57%, 22%)
HSV	hsv(222, 72%, 34%)
CMYK	cmyk(72.4%, 50.6%, 0%, 65.9%)
CIE-LAB	lab(18.41, 9.00, -28.95)
CIE-LCH	lch(18.41, 30.32, 287.28°)
OKLab	oklab(29.97% -0.0081 -0.0829)
OKLCH	oklch(29.97% 0.083 264.4)
XYZ	xyz(2.9603, 2.6098, 9.3627)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B57 #574418

analogous

#184B57 #182B57 #251857

triadic

#182B57 #57182B #2B5718

tetradic

#182B57 #57184B #574418 #185725

square

#182B57 #57184B #574418 #185725

split-complementary

#182B57 #572518 #4B5718

monochromatic

#070C18 #0B1327 #182B57 #254387 #325AB7

Accessibility & contrast

On white

13.80

#182B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#182B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B57

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B57	#FFFFFF	#000000	##FFFFFF
##182B57	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153059

Deuteranopia (green-blind)

#082A56

Tritanopia (blue-blind)

#00353C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #182b57;
/* rgb */ color: rgb(24, 43, 87);
/* oklch */ color: oklch(30.0% 0.083 264.4);

Tailwind

colors: {
  custom: {
    50: '#5d6387',
    500: '#182b57',
    950: '#000000',
  },
}

SCSS

$custom: #182b57;
$custom-light: #5d6387;
$custom-dark: #000000;

JSON

{
  "hex": "#182b57",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 87
  },
  "hsl": {
    "h": 221.905,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.29972,
    "c": 0.08327,
    "h": 264.4
  },
  "luminance": 0.0261
}

Semantic roles & 50–950 ramp

primary

#182B57

secondary

#8E753D

accent

#B248E0

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182B57

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

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