#20178A#20178A

#20178A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.176 H 273.5°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#20178A
RGB	rgb(32, 23, 138)
HSL	hsl(245, 71%, 32%)
HSV	hsv(245, 83%, 54%)
CMYK	cmyk(76.8%, 83.3%, 0%, 45.9%)
CIE-LAB	lab(19.03, 42.26, -60.89)
CIE-LCH	lch(19.03, 74.11, 304.76°)
OKLab	oklab(32.07% 0.0108 -0.1761)
OKLCH	oklch(32.07% 0.176 273.5)
XYZ	xyz(5.4880, 2.7543, 24.2822)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#20178A #818A17

analogous

#17488A #20178A #5A178A

triadic

#20178A #8A2017 #178A20

tetradic

#20178A #8A1748 #818A17 #178A5A

square

#20178A #8A1748 #818A17 #178A5A

split-complementary

#20178A #8A5A17 #488A17

monochromatic

#080621 #140E56 #20178A #2C20BE #493DDF

Accessibility & contrast

On white

13.54

#20178A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#20178A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #20178A

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##20178A	#FFFFFF	#000000	##FFFFFF
##20178A	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338D

Deuteranopia (green-blind)

#002988

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #20178a;
/* rgb */ color: rgb(32, 23, 138);
/* oklch */ color: oklch(32.1% 0.176 273.5);

Tailwind

colors: {
  custom: {
    50: '#6f58ad',
    500: '#20178a',
    950: '#000000',
  },
}

SCSS

$custom: #20178a;
$custom-light: #6f58ad;
$custom-dark: #000000;

JSON

{
  "hex": "#20178a",
  "rgb": {
    "r": 32,
    "g": 23,
    "b": 138
  },
  "hsl": {
    "h": 244.696,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32066,
    "c": 0.17645,
    "h": 273.5
  },
  "luminance": 0.02755
}

Semantic roles & 50–950 ramp

primary

#20178A

secondary

#B4BE3F

accent

#EE3AE0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #20178A

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

Preview Lab → · Contrast checker → · Palette generator →