#182A58#182A58

#182A58 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.8% C 0.086 H 265.4°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#182A58
RGB	rgb(24, 42, 88)
HSL	hsl(223, 57%, 22%)
HSV	hsv(223, 73%, 35%)
CMYK	cmyk(72.7%, 52.3%, 0%, 65.5%)
CIE-LAB	lab(18.16, 10.15, -30.01)
CIE-LCH	lch(18.16, 31.68, 288.69°)
OKLab	oklab(29.81% -0.0069 -0.086)
OKLCH	oklch(29.81% 0.086 265.4)
XYZ	xyz(2.9655, 2.5544, 9.5674)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A58 #584618

analogous

#184A58 #182A58 #261858

triadic

#182A58 #58182A #2A5818

tetradic

#182A58 #58184A #584618 #185826

square

#182A58 #58184A #584618 #185826

split-complementary

#182A58 #582618 #4A5818

monochromatic

#070B18 #0B1328 #182A58 #254188 #3258B8

Accessibility & contrast

On white

13.90

#182A58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182A58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A58

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A58	#FFFFFF	#000000	##FFFFFF
##182A58	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112F5A

Deuteranopia (green-blind)

#032A57

Tritanopia (blue-blind)

#00353C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182a58;
/* rgb */ color: rgb(24, 42, 88);
/* oklch */ color: oklch(29.8% 0.086 265.4);

Tailwind

colors: {
  custom: {
    50: '#5e6387',
    500: '#182a58',
    950: '#000000',
  },
}

SCSS

$custom: #182a58;
$custom-light: #5e6387;
$custom-dark: #000000;

JSON

{
  "hex": "#182a58",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 88
  },
  "hsl": {
    "h": 223.125,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.29808,
    "c": 0.08629,
    "h": 265.4
  },
  "luminance": 0.02555
}

Semantic roles & 50–950 ramp

primary

#182A58

secondary

#8F783D

accent

#B547E0

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182A58

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

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