#182D57#182D57

#182D57 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.5% C 0.080 H 262.6°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#182D57
RGB	rgb(24, 45, 87)
HSL	hsl(220, 57%, 22%)
HSV	hsv(220, 72%, 34%)
CMYK	cmyk(72.4%, 48.3%, 0%, 65.9%)
CIE-LAB	lab(19.05, 7.54, -27.92)
CIE-LCH	lch(19.05, 28.92, 285.12°)
OKLab	oklab(30.46% -0.0104 -0.0798)
OKLCH	oklch(30.46% 0.08 262.6)
XYZ	xyz(3.0348, 2.7588, 9.3875)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D57 #574218

analogous

#184D57 #182D57 #231857

triadic

#182D57 #57182D #2D5718

tetradic

#182D57 #57184D #574218 #185723

square

#182D57 #57184D #574218 #185723

split-complementary

#182D57 #572318 #4D5718

monochromatic

#070C18 #0B1427 #182D57 #254687 #325FB7

Accessibility & contrast

On white

13.53

#182D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#182D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D57

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D57	#FFFFFF	#000000	##FFFFFF
##182D57	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193159

Deuteranopia (green-blind)

#0E2C56

Tritanopia (blue-blind)

#00373D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182d57;
/* rgb */ color: rgb(24, 45, 87);
/* oklch */ color: oklch(30.5% 0.080 262.6);

Tailwind

colors: {
  custom: {
    50: '#5d6587',
    500: '#182d57',
    950: '#000000',
  },
}

SCSS

$custom: #182d57;
$custom-light: #5d6587;
$custom-dark: #000000;

JSON

{
  "hex": "#182d57",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 87
  },
  "hsl": {
    "h": 220,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.30465,
    "c": 0.08048,
    "h": 262.6
  },
  "luminance": 0.02759
}

Semantic roles & 50–950 ramp

primary

#182D57

secondary

#8E733D

accent

#AD48E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05050B

muted

#797A7C

Preview Lab

Preview with #182D57

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

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