#182E78#182E78

#182E78 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.5% C 0.129 H 266.5°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#182E78
RGB	rgb(24, 46, 120)
HSL	hsl(226, 67%, 28%)
HSV	hsv(226, 80%, 47%)
CMYK	cmyk(80%, 61.7%, 0%, 52.9%)
CIE-LAB	lab(21.96, 20.47, -44.71)
CIE-LCH	lch(21.96, 49.17, 294.60°)
OKLab	oklab(33.49% -0.0078 -0.1292)
OKLCH	oklch(33.49% 0.129 266.5)
XYZ	xyz(4.7427, 3.5037, 18.1920)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E78 #786218

analogous

#185E78 #182E78 #321878

triadic

#182E78 #78182E #2E7818

tetradic

#182E78 #78185E #786218 #187832

square

#182E78 #78185E #786218 #187832

split-complementary

#182E78 #783218 #5E7818

monochromatic

#050A1A #0E1A45 #182E78 #2242AB #3459D6

Accessibility & contrast

On white

12.35

#182E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#182E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E78

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E78	#FFFFFF	#000000	##FFFFFF
##182E78	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397A

Deuteranopia (green-blind)

#003077

Tritanopia (blue-blind)

#00414E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #182e78;
/* rgb */ color: rgb(24, 46, 120);
/* oklch */ color: oklch(33.5% 0.129 266.5);

Tailwind

colors: {
  custom: {
    50: '#6666a0',
    500: '#182e78',
    950: '#000000',
  },
}

SCSS

$custom: #182e78;
$custom-light: #6666a0;
$custom-dark: #000000;

JSON

{
  "hex": "#182e78",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 120
  },
  "hsl": {
    "h": 226.25,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33492,
    "c": 0.1294,
    "h": 266.5
  },
  "luminance": 0.03504
}

Semantic roles & 50–950 ramp

primary

#182E78

secondary

#AD943F

accent

#C23EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050F

muted

#7A7A7E

Preview Lab

Preview with #182E78

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

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