#182458#182458

#182458 is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.4% C 0.095 H 269.6°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#182458
RGB	rgb(24, 36, 88)
HSL	hsl(229, 57%, 22%)
HSV	hsv(229, 73%, 35%)
CMYK	cmyk(72.7%, 59.1%, 0%, 65.5%)
CIE-LAB	lab(16.31, 14.59, -33.01)
CIE-LCH	lch(16.31, 36.09, 293.84°)
OKLab	oklab(28.4% -0.0006 -0.0949)
OKLCH	oklch(28.4% 0.095 269.6)
XYZ	xyz(2.7684, 2.1603, 9.5017)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182458 #584C18

analogous

#184458 #182458 #2C1858

triadic

#182458 #581824 #245818

tetradic

#182458 #581844 #584C18 #18582C

square

#182458 #581844 #584C18 #18582C

split-complementary

#182458 #582C18 #445818

monochromatic

#070A18 #0B1028 #182458 #253888 #324BB8

Accessibility & contrast

On white

14.66

#182458 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#182458 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182458

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182458	#FFFFFF	#000000	##FFFFFF
##182458	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B5A

Deuteranopia (green-blind)

#002657

Tritanopia (blue-blind)

#00303A

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #182458;
/* rgb */ color: rgb(24, 36, 88);
/* oklch */ color: oklch(28.4% 0.095 269.6);

Tailwind

colors: {
  custom: {
    50: '#5e5e88',
    500: '#182458',
    950: '#000000',
  },
}

SCSS

$custom: #182458;
$custom-light: #5e5e88;
$custom-dark: #000000;

JSON

{
  "hex": "#182458",
  "rgb": {
    "r": 24,
    "g": 36,
    "b": 88
  },
  "hsl": {
    "h": 228.75,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.28401,
    "c": 0.09493,
    "h": 269.6
  },
  "luminance": 0.02161
}

Semantic roles & 50–950 ramp

primary

#182458

secondary

#8F7F3D

accent

#C447E0

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #182458

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

Preview Lab → · Contrast checker → · Palette generator →