#203B81#203B81

#203B81 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.123 H 265.1°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#203B81
RGB	rgb(32, 59, 129)
HSL	hsl(223, 60%, 32%)
HSV	hsv(223, 75%, 51%)
CMYK	cmyk(75.2%, 54.3%, 0%, 49.4%)
CIE-LAB	lab(26.79, 15.97, -42.53)
CIE-LCH	lch(26.79, 45.43, 290.59°)
OKLab	oklab(37.46% -0.0106 -0.1224)
OKLCH	oklch(37.46% 0.123 265.1)
XYZ	xyz(6.1207, 5.0193, 21.4109)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203B81 #816620

analogous

#206C81 #203B81 #362081

triadic

#203B81 #81203B #3B8120

tetradic

#203B81 #81206C #816620 #208136

square

#203B81 #81206C #816620 #208136

split-complementary

#203B81 #813620 #6C8120

monochromatic

#080E1F #142550 #203B81 #2C51B2 #496FD2

Accessibility & contrast

On white

10.48

#203B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#203B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203B81

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203B81	#FFFFFF	#000000	##FFFFFF
##203B81	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4483

Deuteranopia (green-blind)

#003B80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #203b81;
/* rgb */ color: rgb(32, 59, 129);
/* oklch */ color: oklch(37.5% 0.123 265.1);

Tailwind

colors: {
  custom: {
    50: '#6a70a6',
    500: '#203b81',
    950: '#000000',
  },
}

SCSS

$custom: #203b81;
$custom-light: #6a70a6;
$custom-dark: #000000;

JSON

{
  "hex": "#203b81",
  "rgb": {
    "r": 32,
    "g": 59,
    "b": 129
  },
  "hsl": {
    "h": 223.299,
    "s": 60.248,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37458,
    "c": 0.12281,
    "h": 265.1
  },
  "luminance": 0.0502
}

Semantic roles & 50–950 ramp

primary

#203B81

secondary

#B49649

accent

#B744E3

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #203B81

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

Preview Lab → · Contrast checker → · Palette generator →