#182B58#182B58

#182B58 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.0% C 0.085 H 264.6°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#182B58
RGB	rgb(24, 43, 88)
HSL	hsl(222, 57%, 22%)
HSV	hsv(222, 73%, 35%)
CMYK	cmyk(72.7%, 51.1%, 0%, 65.5%)
CIE-LAB	lab(18.48, 9.42, -29.50)
CIE-LCH	lch(18.48, 30.97, 287.70°)
OKLab	oklab(30.05% -0.008 -0.0845)
OKLCH	oklch(30.05% 0.085 264.6)
XYZ	xyz(3.0014, 2.6262, 9.5794)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B58 #584518

analogous

#184B58 #182B58 #251858

triadic

#182B58 #58182B #2B5818

tetradic

#182B58 #58184B #584518 #185825

square

#182B58 #58184B #584518 #185825

split-complementary

#182B58 #582518 #4B5818

monochromatic

#070C18 #0B1428 #182B58 #254288 #325AB8

Accessibility & contrast

On white

13.77

#182B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#182B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B58

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B58	#FFFFFF	#000000	##FFFFFF
##182B58	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14305A

Deuteranopia (green-blind)

#062A57

Tritanopia (blue-blind)

#00353D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #182b58;
/* rgb */ color: rgb(24, 43, 88);
/* oklch */ color: oklch(30.0% 0.085 264.6);

Tailwind

colors: {
  custom: {
    50: '#5d6387',
    500: '#182b58',
    950: '#000000',
  },
}

SCSS

$custom: #182b58;
$custom-light: #5d6387;
$custom-dark: #000000;

JSON

{
  "hex": "#182b58",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 88
  },
  "hsl": {
    "h": 222.188,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.3005,
    "c": 0.08487,
    "h": 264.6
  },
  "luminance": 0.02627
}

Semantic roles & 50–950 ramp

primary

#182B58

secondary

#8F763D

accent

#B347E0

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182B58

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

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