#182D80#182D80

#182D80 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.142 H 267.1°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#182D80
RGB	rgb(24, 45, 128)
HSL	hsl(228, 68%, 30%)
HSV	hsv(228, 81%, 50%)
CMYK	cmyk(81.3%, 64.8%, 0%, 49.8%)
CIE-LAB	lab(22.40, 24.40, -49.05)
CIE-LCH	lch(22.40, 54.78, 296.44°)
OKLab	oklab(34.05% -0.0071 -0.1419)
OKLCH	oklch(34.05% 0.142 267.1)
XYZ	xyz(5.2100, 3.6289, 20.8437)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D80 #806B18

analogous

#186180 #182D80 #371880

triadic

#182D80 #80182D #2D8018

tetradic

#182D80 #801861 #806B18 #188037

square

#182D80 #801861 #806B18 #188037

split-complementary

#182D80 #803718 #618018

monochromatic

#05091A #0E1B4C #182D80 #223FB4 #3959DA

Accessibility & contrast

On white

12.17

#182D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#182D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D80

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D80	#FFFFFF	#000000	##FFFFFF
##182D80	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B83

Deuteranopia (green-blind)

#00317E

Tritanopia (blue-blind)

#004352

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #182d80;
/* rgb */ color: rgb(24, 45, 128);
/* oklch */ color: oklch(34.0% 0.142 267.1);

Tailwind

colors: {
  custom: {
    50: '#6865a6',
    500: '#182d80',
    950: '#000000',
  },
}

SCSS

$custom: #182d80;
$custom-light: #6865a6;
$custom-dark: #000000;

JSON

{
  "hex": "#182d80",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 128
  },
  "hsl": {
    "h": 227.885,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.34048,
    "c": 0.14208,
    "h": 267.1
  },
  "luminance": 0.03629
}

Semantic roles & 50–950 ramp

primary

#182D80

secondary

#B49D40

accent

#C83DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #182D80

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

Preview Lab → · Contrast checker → · Palette generator →