#20178E#20178E

#20178E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.181 H 273.1°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#20178E
RGB	rgb(32, 23, 142)
HSL	hsl(245, 72%, 32%)
HSV	hsv(245, 84%, 56%)
CMYK	cmyk(77.5%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(19.52, 43.53, -62.57)
CIE-LCH	lch(19.52, 76.22, 304.83°)
OKLab	oklab(32.55% 0.0097 -0.181)
OKLCH	oklch(32.55% 0.181 273.1)
XYZ	xyz(5.7829, 2.8723, 25.8356)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#20178E #858E17

analogous

#17498E #20178E #5C178E

triadic

#20178E #8E2017 #178E20

tetradic

#20178E #8E1749 #858E17 #178E5C

square

#20178E #8E1749 #858E17 #178E5C

split-complementary

#20178E #8E5C17 #498E17

monochromatic

#080625 #140E59 #20178E #2C20C3 #4C3FE0

Accessibility & contrast

On white

13.34

#20178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#20178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #20178E

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##20178E	#FFFFFF	#000000	##FFFFFF
##20178E	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00298C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #20178e;
/* rgb */ color: rgb(32, 23, 142);
/* oklch */ color: oklch(32.6% 0.181 273.1);

Tailwind

colors: {
  custom: {
    50: '#7058b0',
    500: '#20178e',
    950: '#000000',
  },
}

SCSS

$custom: #20178e;
$custom-light: #7058b0;
$custom-dark: #000000;

JSON

{
  "hex": "#20178e",
  "rgb": {
    "r": 32,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 244.538,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3255,
    "c": 0.18125,
    "h": 273.1
  },
  "luminance": 0.02873
}

Semantic roles & 50–950 ramp

primary

#20178E

secondary

#B7C040

accent

#EF39E1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #20178E

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

Preview Lab → · Contrast checker → · Palette generator →