#5159CF#5159CF

#5159CF is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.5% C 0.180 H 275.4°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#5159CF
RGB	rgb(81, 89, 207)
HSL	hsl(236, 57%, 56%)
HSV	hsv(236, 61%, 81%)
CMYK	cmyk(60.9%, 57%, 0%, 18.8%)
CIE-LAB	lab(43.36, 32.47, -62.22)
CIE-LCH	lch(43.36, 70.18, 297.56°)
OKLab	oklab(52.46% 0.0169 -0.1787)
OKLCH	oklch(52.46% 0.18 275.4)
XYZ	xyz(18.2245, 13.3976, 60.6450)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159CF #CFC751

analogous

#5198CF #5159CF #8851CF

triadic

#5159CF #CF5159 #59CF51

tetradic

#5159CF #CF5198 #CFC751 #51CF88

square

#5159CF #CF5198 #CFC751 #51CF88

split-complementary

#5159CF #CF8851 #98CF51

monochromatic

#242A82 #3139B2 #5159CF #8187DC #B1B5E9

Accessibility & contrast

On white

5.71

#5159CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#5159CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159CF

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159CF	#FFFFFF	#000000	##FFFFFF
##5159CF	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD3

Deuteranopia (green-blind)

#0061CD

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5159cf;
/* rgb */ color: rgb(81, 89, 207);
/* oklch */ color: oklch(52.5% 0.180 275.4);

Tailwind

colors: {
  custom: {
    50: '#8e88de',
    500: '#5159cf',
    950: '#000000',
  },
}

SCSS

$custom: #5159cf;
$custom-light: #8e88de;
$custom-dark: #000000;

JSON

{
  "hex": "#5159cf",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 207
  },
  "hsl": {
    "h": 236.19,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52457,
    "c": 0.17954,
    "h": 275.4
  },
  "luminance": 0.13399
}

Semantic roles & 50–950 ramp

primary

#5159CF

secondary

#D8D4A4

accent

#D648E0

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5159CF

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

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