#203B78#203B78

#203B78 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.109 H 263.9°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#203B78
RGB	rgb(32, 59, 120)
HSL	hsl(222, 58%, 30%)
HSV	hsv(222, 73%, 47%)
CMYK	cmyk(73.3%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(26.13, 12.37, -37.93)
CIE-LCH	lch(26.13, 39.90, 288.06°)
OKLab	oklab(36.74% -0.0117 -0.1088)
OKLCH	oklch(36.74% 0.109 263.9)
XYZ	xyz(5.5486, 4.7905, 18.3979)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203B78 #785D20

analogous

#206778 #203B78 #312078

triadic

#203B78 #78203B #3B7820

tetradic

#203B78 #782067 #785D20 #207831

square

#203B78 #782067 #785D20 #207831

split-complementary

#203B78 #783120 #677820

monochromatic

#060C18 #132348 #203B78 #2D53A8 #456FCD

Accessibility & contrast

On white

10.72

#203B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#203B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203B78

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203B78	#FFFFFF	#000000	##FFFFFF
##203B78	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19427A

Deuteranopia (green-blind)

#003A77

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #203b78;
/* rgb */ color: rgb(32, 59, 120);
/* oklch */ color: oklch(36.7% 0.109 263.9);

Tailwind

colors: {
  custom: {
    50: '#68709f',
    500: '#203b78',
    950: '#000000',
  },
}

SCSS

$custom: #203b78;
$custom-light: #68709f;
$custom-dark: #000000;

JSON

{
  "hex": "#203b78",
  "rgb": {
    "r": 32,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 221.591,
    "s": 57.895,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36745,
    "c": 0.10946,
    "h": 263.9
  },
  "luminance": 0.04791
}

Semantic roles & 50–950 ramp

primary

#203B78

secondary

#AB8D48

accent

#B247E1

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #203B78

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

Preview Lab → · Contrast checker → · Palette generator →