#5159CB#5159CB

#5159CB is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.2% C 0.174 H 275.5°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#5159CB
RGB	rgb(81, 89, 203)
HSL	hsl(236, 54%, 56%)
HSV	hsv(236, 60%, 80%)
CMYK	cmyk(60.1%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(43.07, 31.14, -60.38)
CIE-LCH	lch(43.07, 67.93, 297.28°)
OKLab	oklab(52.15% 0.0168 -0.1733)
OKLCH	oklch(52.15% 0.174 275.5)
XYZ	xyz(17.7417, 13.2045, 58.1021)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159CB #CBC351

analogous

#5196CB #5159CB #8651CB

triadic

#5159CB #CB5159 #59CB51

tetradic

#5159CB #CB5196 #CBC351 #51CB86

square

#5159CB #CB5196 #CBC351 #51CB86

split-complementary

#5159CB #CB8651 #96CB51

monochromatic

#252B7C #333BAC #5159CB #8086D9 #AFB3E7

Accessibility & contrast

On white

5.77

#5159CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#5159CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159CB

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159CB	#FFFFFF	#000000	##FFFFFF
##5159CB	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5159cb;
/* rgb */ color: rgb(81, 89, 203);
/* oklch */ color: oklch(52.2% 0.174 275.5);

Tailwind

colors: {
  custom: {
    50: '#8d87dc',
    500: '#5159cb',
    950: '#000000',
  },
}

SCSS

$custom: #5159cb;
$custom-light: #8d87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5159cb",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 236.066,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52153,
    "c": 0.17414,
    "h": 275.5
  },
  "luminance": 0.13206
}

Semantic roles & 50–950 ramp

primary

#5159CB

secondary

#D5D2A3

accent

#D44ADD

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5159CB

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

Preview Lab → · Contrast checker → · Palette generator →