#203F81#203F81

#203F81 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.4% C 0.118 H 263.1°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#203F81
RGB	rgb(32, 63, 129)
HSL	hsl(221, 60%, 32%)
HSV	hsv(221, 75%, 51%)
CMYK	cmyk(75.2%, 51.2%, 0%, 49.4%)
CIE-LAB	lab(27.97, 13.19, -40.62)
CIE-LCH	lch(27.97, 42.71, 287.99°)
OKLab	oklab(38.36% -0.0141 -0.1167)
OKLCH	oklch(38.36% 0.118 263.1)
XYZ	xyz(6.3342, 5.4464, 21.4821)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F81 #816220

analogous

#207081 #203F81 #322081

triadic

#203F81 #81203F #3F8120

tetradic

#203F81 #812070 #816220 #208132

square

#203F81 #812070 #816220 #208132

split-complementary

#203F81 #813220 #708120

monochromatic

#080F1F #142750 #203F81 #2C57B2 #4975D2

Accessibility & contrast

On white

10.05

#203F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#203F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F81

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F81	#FFFFFF	#000000	##FFFFFF
##203F81	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194783

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #203f81;
/* rgb */ color: rgb(32, 63, 129);
/* oklch */ color: oklch(38.4% 0.118 263.1);

Tailwind

colors: {
  custom: {
    50: '#6a73a6',
    500: '#203f81',
    950: '#000000',
  },
}

SCSS

$custom: #203f81;
$custom-light: #6a73a6;
$custom-dark: #000000;

JSON

{
  "hex": "#203f81",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 129
  },
  "hsl": {
    "h": 220.825,
    "s": 60.248,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38357,
    "c": 0.11752,
    "h": 263.1
  },
  "luminance": 0.05447
}

Semantic roles & 50–950 ramp

primary

#203F81

secondary

#B49249

accent

#B144E3

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #203F81

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

Preview Lab → · Contrast checker → · Palette generator →