#203399#203399

#203399 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.167 H 268.5°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#203399
RGB	rgb(32, 51, 153)
HSL	hsl(231, 65%, 36%)
HSV	hsv(231, 79%, 60%)
CMYK	cmyk(79.1%, 66.7%, 0%, 40%)
CIE-LAB	lab(26.66, 30.84, -57.59)
CIE-LCH	lch(26.66, 65.32, 298.17°)
OKLab	oklab(38% -0.0043 -0.1667)
OKLCH	oklch(38% 0.167 268.5)
XYZ	xyz(7.5273, 4.9738, 30.6941)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203399 #998620

analogous

#207099 #203399 #4A2099

triadic

#203399 #992033 #339920

tetradic

#203399 #992070 #998620 #20994A

square

#203399 #992070 #998620 #20994A

split-complementary

#203399 #994A20 #709920

monochromatic

#0B1134 #152266 #203399 #2B44CC #576CDC

Accessibility & contrast

On white

10.53

#203399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#203399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203399

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203399	#FFFFFF	#000000	##FFFFFF
##203399	1.00	10.53	2.00	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459C

Deuteranopia (green-blind)

#003997

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #203399;
/* rgb */ color: rgb(32, 51, 153);
/* oklch */ color: oklch(38.0% 0.167 268.5);

Tailwind

colors: {
  custom: {
    50: '#716ab8',
    500: '#203399',
    950: '#000000',
  },
}

SCSS

$custom: #203399;
$custom-light: #716ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#203399",
  "rgb": {
    "r": 32,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 230.579,
    "s": 65.405,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37996,
    "c": 0.16672,
    "h": 268.5
  },
  "luminance": 0.04975
}

Semantic roles & 50–950 ramp

primary

#203399

secondary

#C0AF55

accent

#CE3FE8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #203399

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

Preview Lab → · Contrast checker → · Palette generator →