#183987#183987

#183987 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.136 H 263.7°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#183987
RGB	rgb(24, 57, 135)
HSL	hsl(222, 70%, 31%)
HSV	hsv(222, 82%, 53%)
CMYK	cmyk(82.2%, 57.8%, 0%, 47.1%)
CIE-LAB	lab(26.36, 18.82, -46.99)
CIE-LCH	lch(26.36, 50.62, 291.83°)
OKLab	oklab(37.19% -0.0149 -0.1357)
OKLCH	oklch(37.19% 0.136 263.7)
XYZ	xyz(6.2114, 4.8690, 23.5294)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183987 #876618

analogous

#187087 #183987 #2E1887

triadic

#183987 #871839 #398718

tetradic

#183987 #871870 #876618 #18872E

square

#183987 #871870 #876618 #18872E

split-complementary

#183987 #872E18 #708718

monochromatic

#060D1F #0F2353 #183987 #214FBB #3D6CDC

Accessibility & contrast

On white

10.64

#183987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#183987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183987

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183987	#FFFFFF	#000000	##FFFFFF
##183987	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004C5A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #183987;
/* rgb */ color: rgb(24, 57, 135);
/* oklch */ color: oklch(37.2% 0.136 263.7);

Tailwind

colors: {
  custom: {
    50: '#696eab',
    500: '#183987',
    950: '#000000',
  },
}

SCSS

$custom: #183987;
$custom-light: #696eab;
$custom-dark: #000000;

JSON

{
  "hex": "#183987",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 135
  },
  "hsl": {
    "h": 222.162,
    "s": 69.811,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37191,
    "c": 0.13648,
    "h": 263.7
  },
  "luminance": 0.0487
}

Semantic roles & 50–950 ramp

primary

#183987

secondary

#BB9640

accent

#B83BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183987

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

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