#5156CB#5156CB

#5156CB is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.6% C 0.178 H 276.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#5156CB
RGB	rgb(81, 86, 203)
HSL	hsl(238, 54%, 56%)
HSV	hsv(238, 60%, 80%)
CMYK	cmyk(60.1%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(42.33, 33.00, -61.57)
CIE-LCH	lch(42.33, 69.86, 298.19°)
OKLab	oklab(51.6% 0.0197 -0.1769)
OKLCH	oklch(51.6% 0.178 276.3)
XYZ	xyz(17.4971, 12.7154, 58.0206)
Luminance	0.1272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5156CB #CBC651

analogous

#5193CB #5156CB #8951CB

triadic

#5156CB #CB5156 #56CB51

tetradic

#5156CB #CB5193 #CBC651 #51CB89

square

#5156CB #CB5193 #CBC651 #51CB89

split-complementary

#5156CB #CB8951 #93CB51

monochromatic

#25297C #3338AC #5156CB #8084D9 #AFB2E7

Accessibility & contrast

On white

5.93

#5156CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#5156CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5156CB

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5156CB	#FFFFFF	#000000	##FFFFFF
##5156CB	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5156cb;
/* rgb */ color: rgb(81, 86, 203);
/* oklch */ color: oklch(51.6% 0.178 276.3);

Tailwind

colors: {
  custom: {
    50: '#8d85dc',
    500: '#5156cb',
    950: '#000000',
  },
}

SCSS

$custom: #5156cb;
$custom-light: #8d85dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5156cb",
  "rgb": {
    "r": 81,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 237.541,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.51604,
    "c": 0.17797,
    "h": 276.3
  },
  "luminance": 0.12717
}

Semantic roles & 50–950 ramp

primary

#5156CB

secondary

#D5D3A3

accent

#D74ADD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5156CB

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

Preview Lab → · Contrast checker → · Palette generator →