#182858#182858

#182858 is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.3% C 0.089 H 266.9°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#182858
RGB	rgb(24, 40, 88)
HSL	hsl(225, 57%, 22%)
HSV	hsv(225, 73%, 35%)
CMYK	cmyk(72.7%, 54.5%, 0%, 65.5%)
CIE-LAB	lab(17.53, 11.63, -31.02)
CIE-LCH	lch(17.53, 33.13, 290.54°)
OKLab	oklab(29.33% -0.0048 -0.089)
OKLCH	oklch(29.33% 0.089 266.9)
XYZ	xyz(2.8963, 2.4161, 9.5443)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182858 #584818

analogous

#184858 #182858 #281858

triadic

#182858 #581828 #285818

tetradic

#182858 #581848 #584818 #185828

square

#182858 #581848 #584818 #185828

split-complementary

#182858 #582818 #485818

monochromatic

#070B18 #0B1228 #182858 #253E88 #3254B8

Accessibility & contrast

On white

14.16

#182858 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#182858 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182858

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182858	#FFFFFF	#000000	##FFFFFF
##182858	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2E5A

Deuteranopia (green-blind)

#002857

Tritanopia (blue-blind)

#00333B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #182858;
/* rgb */ color: rgb(24, 40, 88);
/* oklch */ color: oklch(29.3% 0.089 266.9);

Tailwind

colors: {
  custom: {
    50: '#5e6187',
    500: '#182858',
    950: '#000000',
  },
}

SCSS

$custom: #182858;
$custom-light: #5e6187;
$custom-dark: #000000;

JSON

{
  "hex": "#182858",
  "rgb": {
    "r": 24,
    "g": 40,
    "b": 88
  },
  "hsl": {
    "h": 225,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.29329,
    "c": 0.08915,
    "h": 266.9
  },
  "luminance": 0.02416
}

Semantic roles & 50–950 ramp

primary

#182858

secondary

#8F7A3D

accent

#BA47E0

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182858

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

Preview Lab → · Contrast checker → · Palette generator →