#182F5A#182F5A

#182F5A is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.2% C 0.082 H 261.7°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#182F5A
RGB	rgb(24, 47, 90)
HSL	hsl(219, 58%, 22%)
HSV	hsv(219, 73%, 35%)
CMYK	cmyk(73.3%, 47.8%, 0%, 64.7%)
CIE-LAB	lab(19.90, 7.33, -28.55)
CIE-LCH	lch(19.90, 29.48, 284.40°)
OKLab	oklab(31.19% -0.0119 -0.0816)
OKLCH	oklch(31.19% 0.082 261.7)
XYZ	xyz(3.2380, 2.9651, 10.0725)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F5A #5A4318

analogous

#18505A #182F5A #22185A

triadic

#182F5A #5A182F #2F5A18

tetradic

#182F5A #5A1850 #5A4318 #185A22

square

#182F5A #5A1850 #5A4318 #185A22

split-complementary

#182F5A #5A2218 #505A18

monochromatic

#060D18 #0B162A #182F5A #25488A #3261BB

Accessibility & contrast

On white

13.18

#182F5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#182F5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F5A

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F5A	#FFFFFF	#000000	##FFFFFF
##182F5A	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A335C

Deuteranopia (green-blind)

#0E2D59

Tritanopia (blue-blind)

#003940

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f5a;
/* rgb */ color: rgb(24, 47, 90);
/* oklch */ color: oklch(31.2% 0.082 261.7);

Tailwind

colors: {
  custom: {
    50: '#5e6789',
    500: '#182f5a',
    950: '#000000',
  },
}

SCSS

$custom: #182f5a;
$custom-light: #5e6789;
$custom-dark: #000000;

JSON

{
  "hex": "#182f5a",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 90
  },
  "hsl": {
    "h": 219.091,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31188,
    "c": 0.08249,
    "h": 261.7
  },
  "luminance": 0.02965
}

Semantic roles & 50–950 ramp

primary

#182F5A

secondary

#91743D

accent

#AB47E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #182F5A

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

Preview Lab → · Contrast checker → · Palette generator →