#183887#183887

#183887 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.138 H 264.1°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#183887
RGB	rgb(24, 56, 135)
HSL	hsl(223, 70%, 31%)
HSV	hsv(223, 82%, 53%)
CMYK	cmyk(82.2%, 58.5%, 0%, 47.1%)
CIE-LAB	lab(26.07, 19.52, -47.45)
CIE-LCH	lch(26.07, 51.31, 292.36°)
OKLab	oklab(36.98% -0.0142 -0.137)
OKLCH	oklch(36.98% 0.138 264.1)
XYZ	xyz(6.1625, 4.7711, 23.5131)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183887 #876718

analogous

#186F87 #183887 #2F1887

triadic

#183887 #871838 #388718

tetradic

#183887 #87186F #876718 #18872F

square

#183887 #87186F #876718 #18872F

split-complementary

#183887 #872F18 #6F8718

monochromatic

#060D1F #0F2253 #183887 #214EBB #3D6BDC

Accessibility & contrast

On white

10.74

#183887 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#183887 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183887

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183887	#FFFFFF	#000000	##FFFFFF
##183887	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #183887;
/* rgb */ color: rgb(24, 56, 135);
/* oklch */ color: oklch(37.0% 0.138 264.1);

Tailwind

colors: {
  custom: {
    50: '#696eab',
    500: '#183887',
    950: '#000000',
  },
}

SCSS

$custom: #183887;
$custom-light: #696eab;
$custom-dark: #000000;

JSON

{
  "hex": "#183887",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 135
  },
  "hsl": {
    "h": 222.703,
    "s": 69.811,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36975,
    "c": 0.13778,
    "h": 264.1
  },
  "luminance": 0.04772
}

Semantic roles & 50–950 ramp

primary

#183887

secondary

#BB9740

accent

#B93BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183887

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

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