#183984#183984

#183984 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.9% C 0.132 H 263.4°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#183984
RGB	rgb(24, 57, 132)
HSL	hsl(222, 69%, 31%)
HSV	hsv(222, 82%, 52%)
CMYK	cmyk(81.8%, 56.8%, 0%, 48.2%)
CIE-LAB	lab(26.12, 17.59, -45.51)
CIE-LCH	lch(26.12, 48.79, 291.13°)
OKLab	oklab(36.93% -0.0152 -0.1313)
OKLCH	oklch(36.93% 0.132 263.4)
XYZ	xyz(6.0032, 4.7857, 22.4327)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183984 #846318

analogous

#186F84 #183984 #2D1884

triadic

#183984 #841839 #398418

tetradic

#183984 #84186F #846318 #18842D

square

#183984 #84186F #846318 #18842D

split-complementary

#183984 #842D18 #6F8418

monochromatic

#050C1C #0F2350 #183984 #214FB8 #3B6CDB

Accessibility & contrast

On white

10.73

#183984 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#183984 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183984

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183984	#FFFFFF	#000000	##FFFFFF
##183984	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004387

Deuteranopia (green-blind)

#003983

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #183984;
/* rgb */ color: rgb(24, 57, 132);
/* oklch */ color: oklch(36.9% 0.132 263.4);

Tailwind

colors: {
  custom: {
    50: '#686ea8',
    500: '#183984',
    950: '#000000',
  },
}

SCSS

$custom: #183984;
$custom-light: #686ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#183984",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 132
  },
  "hsl": {
    "h": 221.667,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36931,
    "c": 0.13219,
    "h": 263.4
  },
  "luminance": 0.04786
}

Semantic roles & 50–950 ramp

primary

#183984

secondary

#B89340

accent

#B63CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183984

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

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