#182A55#182A55

#182A55 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.6% C 0.081 H 264.8°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).

Color values

HEX	#182A55
RGB	rgb(24, 42, 85)
HSL	hsl(222, 56%, 21%)
HSV	hsv(222, 72%, 33%)
CMYK	cmyk(71.8%, 50.6%, 0%, 66.7%)
CIE-LAB	lab(17.94, 8.91, -28.36)
CIE-LCH	lch(17.94, 29.73, 287.44°)
OKLab	oklab(29.57% -0.0074 -0.0811)
OKLCH	oklch(29.57% 0.081 264.8)
XYZ	xyz(2.8438, 2.5057, 8.9264)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A55 #554318

analogous

#184955 #182A55 #251855

triadic

#182A55 #55182A #2A5518

tetradic

#182A55 #551849 #554318 #185525

square

#182A55 #551849 #554318 #185525

split-complementary

#182A55 #552518 #495518

monochromatic

#070C18 #0B1225 #182A55 #254285 #3359B4

Accessibility & contrast

On white

13.99

#182A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#182A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A55

13.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A55	#FFFFFF	#000000	##FFFFFF
##182A55	1.00	13.99	1.50	13.99
#FFFFFF	13.99	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#142F57

Deuteranopia (green-blind)

#082954

Tritanopia (blue-blind)

#00343B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182a55;
/* rgb */ color: rgb(24, 42, 85);
/* oklch */ color: oklch(29.6% 0.081 264.8);

Tailwind

colors: {
  custom: {
    50: '#5d6385',
    500: '#182a55',
    950: '#000000',
  },
}

SCSS

$custom: #182a55;
$custom-light: #5d6385;
$custom-dark: #000000;

JSON

{
  "hex": "#182a55",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 85
  },
  "hsl": {
    "h": 222.295,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.2957,
    "c": 0.08148,
    "h": 264.8
  },
  "luminance": 0.02506
}

Semantic roles & 50–950 ramp

primary

#182A55

secondary

#8C753D

accent

#B349DF

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #182A55

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

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