#203F78#203F78

#203F78 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.104 H 261.4°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#203F78
RGB	rgb(32, 63, 120)
HSL	hsl(219, 58%, 30%)
HSV	hsv(219, 73%, 47%)
CMYK	cmyk(73.3%, 47.5%, 0%, 52.9%)
CIE-LAB	lab(27.35, 9.58, -35.98)
CIE-LCH	lch(27.35, 37.23, 284.92°)
OKLab	oklab(37.68% -0.0156 -0.103)
OKLCH	oklch(37.68% 0.104 261.4)
XYZ	xyz(5.7621, 5.2176, 18.4691)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F78 #785920

analogous

#206B78 #203F78 #2D2078

triadic

#203F78 #78203F #3F7820

tetradic

#203F78 #78206B #785920 #20782D

square

#203F78 #78206B #785920 #20782D

split-complementary

#203F78 #782D20 #6B7820

monochromatic

#060D18 #132648 #203F78 #2D58A8 #4575CD

Accessibility & contrast

On white

10.28

#203F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#203F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F78

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F78	#FFFFFF	#000000	##FFFFFF
##203F78	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22457A

Deuteranopia (green-blind)

#103D77

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #203f78;
/* rgb */ color: rgb(32, 63, 120);
/* oklch */ color: oklch(37.7% 0.104 261.4);

Tailwind

colors: {
  custom: {
    50: '#67739f',
    500: '#203f78',
    950: '#000000',
  },
}

SCSS

$custom: #203f78;
$custom-light: #67739f;
$custom-dark: #000000;

JSON

{
  "hex": "#203f78",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 120
  },
  "hsl": {
    "h": 218.864,
    "s": 57.895,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37678,
    "c": 0.10419,
    "h": 261.4
  },
  "luminance": 0.05218
}

Semantic roles & 50–950 ramp

primary

#203F78

secondary

#AB8848

accent

#AB47E1

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #203F78

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

Preview Lab → · Contrast checker → · Palette generator →