#182D8F#182D8F

#182D8F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.5% C 0.163 H 267.3°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#182D8F
RGB	rgb(24, 45, 143)
HSL	hsl(229, 71%, 33%)
HSV	hsv(229, 83%, 56%)
CMYK	cmyk(83.2%, 68.5%, 0%, 43.9%)
CIE-LAB	lab(23.85, 30.29, -56.06)
CIE-LCH	lch(23.85, 63.72, 298.38°)
OKLab	oklab(35.55% -0.0077 -0.1624)
OKLCH	oklch(35.55% 0.163 267.3)
XYZ	xyz(6.2713, 4.0534, 26.4331)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D8F #8F7A18

analogous

#18688F #182D8F #3F188F

triadic

#182D8F #8F182D #2D8F18

tetradic

#182D8F #8F1868 #8F7A18 #188F3F

square

#182D8F #8F1868 #8F7A18 #188F3F

split-complementary

#182D8F #8F3F18 #688F18

monochromatic

#060C26 #0F1D5B #182D8F #213DC3 #425EDF

Accessibility & contrast

On white

11.60

#182D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#182D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D8F

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D8F	#FFFFFF	#000000	##FFFFFF
##182D8F	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00338D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #182d8f;
/* rgb */ color: rgb(24, 45, 143);
/* oklch */ color: oklch(35.5% 0.163 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c66b1',
    500: '#182d8f',
    950: '#000000',
  },
}

SCSS

$custom: #182d8f;
$custom-light: #6c66b1;
$custom-dark: #000000;

JSON

{
  "hex": "#182d8f",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 143
  },
  "hsl": {
    "h": 229.412,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35549,
    "c": 0.16258,
    "h": 267.3
  },
  "luminance": 0.04054
}

Semantic roles & 50–950 ramp

primary

#182D8F

secondary

#C0AA43

accent

#CE3AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #182D8F

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

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