#182B79#182B79

#182B79 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.0% C 0.135 H 267.6°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#182B79
RGB	rgb(24, 43, 121)
HSL	hsl(228, 67%, 28%)
HSV	hsv(228, 80%, 47%)
CMYK	cmyk(80.2%, 64.5%, 0%, 52.5%)
CIE-LAB	lab(21.21, 22.99, -46.56)
CIE-LCH	lch(21.21, 51.93, 296.28°)
OKLab	oklab(32.97% -0.0057 -0.1346)
OKLCH	oklch(32.97% 0.135 267.6)
XYZ	xyz(4.6906, 3.3019, 18.4756)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B79 #796618

analogous

#185B79 #182B79 #351879

triadic

#182B79 #79182B #2B7918

tetradic

#182B79 #79185B #796618 #187935

square

#182B79 #79185B #796618 #187935

split-complementary

#182B79 #793518 #5B7918

monochromatic

#05091A #0E1946 #182B79 #223DAC #3554D7

Accessibility & contrast

On white

12.65

#182B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#182B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B79

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B79	#FFFFFF	#000000	##FFFFFF
##182B79	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387C

Deuteranopia (green-blind)

#002E78

Tritanopia (blue-blind)

#003F4D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #182b79;
/* rgb */ color: rgb(24, 43, 121);
/* oklch */ color: oklch(33.0% 0.135 267.6);

Tailwind

colors: {
  custom: {
    50: '#6664a0',
    500: '#182b79',
    950: '#000000',
  },
}

SCSS

$custom: #182b79;
$custom-light: #6664a0;
$custom-dark: #000000;

JSON

{
  "hex": "#182b79",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 121
  },
  "hsl": {
    "h": 228.247,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32967,
    "c": 0.13475,
    "h": 267.6
  },
  "luminance": 0.03302
}

Semantic roles & 50–950 ramp

primary

#182B79

secondary

#AE983F

accent

#C83EEA

background

#F6F5FA

surface

#EBEAF3

border

#C6C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #182B79

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

Preview Lab → · Contrast checker → · Palette generator →