#203F99#203F99

#203F99 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.152 H 265.5°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#203F99
RGB	rgb(32, 63, 153)
HSL	hsl(225, 65%, 36%)
HSV	hsv(225, 79%, 60%)
CMYK	cmyk(79.1%, 58.8%, 0%, 40%)
CIE-LAB	lab(29.82, 22.74, -52.43)
CIE-LCH	lch(29.82, 57.15, 293.45°)
OKLab	oklab(40.34% -0.012 -0.1514)
OKLCH	oklch(40.34% 0.152 265.5)
XYZ	xyz(8.1209, 6.1611, 30.8920)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F99 #997A20

analogous

#207C99 #203F99 #3E2099

triadic

#203F99 #99203F #3F9920

tetradic

#203F99 #99207C #997A20 #20993E

square

#203F99 #99207C #997A20 #20993E

split-complementary

#203F99 #993E20 #7C9920

monochromatic

#0B1534 #152A66 #203F99 #2B54CC #5779DC

Accessibility & contrast

On white

9.41

#203F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#203F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F99

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F99	#FFFFFF	#000000	##FFFFFF
##203F99	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005665

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #203f99;
/* rgb */ color: rgb(32, 63, 153);
/* oklch */ color: oklch(40.3% 0.152 265.5);

Tailwind

colors: {
  custom: {
    50: '#7073b8',
    500: '#203f99',
    950: '#000000',
  },
}

SCSS

$custom: #203f99;
$custom-light: #7073b8;
$custom-dark: #000000;

JSON

{
  "hex": "#203f99",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 224.628,
    "s": 65.405,
    "l": 36.275
  },
  "oklch": {
    "l": 0.40336,
    "c": 0.15187,
    "h": 265.5
  },
  "luminance": 0.06162
}

Semantic roles & 50–950 ramp

primary

#203F99

secondary

#C0A455

accent

#BD3FE8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #203F99

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

Preview Lab → · Contrast checker → · Palette generator →