#182B81#182B81

#182B81 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.146 H 267.7°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#182B81
RGB	rgb(24, 43, 129)
HSL	hsl(229, 69%, 30%)
HSV	hsv(229, 81%, 51%)
CMYK	cmyk(81.4%, 66.7%, 0%, 49.4%)
CIE-LAB	lab(21.97, 26.18, -50.40)
CIE-LCH	lch(21.97, 56.79, 297.45°)
OKLab	oklab(33.75% -0.0059 -0.1459)
OKLCH	oklch(33.75% 0.146 267.7)
XYZ	xyz(5.2016, 3.5063, 21.1673)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B81 #816E18

analogous

#185F81 #182B81 #3A1881

triadic

#182B81 #81182B #2B8118

tetradic

#182B81 #81185F #816E18 #18813A

square

#182B81 #81185F #816E18 #18813A

split-complementary

#182B81 #813A18 #5F8118

monochromatic

#05091A #0E1A4D #182B81 #223CB5 #3956DA

Accessibility & contrast

On white

12.34

#182B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#182B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B81

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B81	#FFFFFF	#000000	##FFFFFF
##182B81	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#00307F

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #182b81;
/* rgb */ color: rgb(24, 43, 129);
/* oklch */ color: oklch(33.8% 0.146 267.7);

Tailwind

colors: {
  custom: {
    50: '#6864a6',
    500: '#182b81',
    950: '#000000',
  },
}

SCSS

$custom: #182b81;
$custom-light: #6864a6;
$custom-dark: #000000;

JSON

{
  "hex": "#182b81",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 129
  },
  "hsl": {
    "h": 229.143,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.33754,
    "c": 0.14598,
    "h": 267.7
  },
  "luminance": 0.03507
}

Semantic roles & 50–950 ramp

primary

#182B81

secondary

#B5A040

accent

#CC3CEB

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #182B81

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

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