#5155CE#5155CE

#5155CE is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.7% C 0.183 H 276.4°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#5155CE
RGB	rgb(81, 85, 206)
HSL	hsl(238, 56%, 56%)
HSV	hsv(238, 61%, 81%)
CMYK	cmyk(60.7%, 58.7%, 0%, 19.2%)
CIE-LAB	lab(42.31, 34.62, -63.34)
CIE-LCH	lch(42.31, 72.18, 298.66°)
OKLab	oklab(51.66% 0.0206 -0.1821)
OKLCH	oklch(51.66% 0.183 276.4)
XYZ	xyz(17.7788, 12.7012, 59.8952)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155CE #CECA51

analogous

#5194CE #5155CE #8C51CE

triadic

#5155CE #CE5155 #55CE51

tetradic

#5155CE #CE5194 #CECA51 #51CE8C

square

#5155CE #CE5194 #CECA51 #51CE8C

split-complementary

#5155CE #CE8C51 #94CE51

monochromatic

#242780 #3236B0 #5155CE #8184DB #B1B2E9

Accessibility & contrast

On white

5.93

#5155CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#5155CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155CE

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155CE	#FFFFFF	#000000	##FFFFFF
##5155CE	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)

#0069D2

Deuteranopia (green-blind)

#005FCC

Tritanopia (blue-blind)

#007289

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5155ce;
/* rgb */ color: rgb(81, 85, 206);
/* oklch */ color: oklch(51.7% 0.183 276.4);

Tailwind

colors: {
  custom: {
    50: '#8e85de',
    500: '#5155ce',
    950: '#000000',
  },
}

SCSS

$custom: #5155ce;
$custom-light: #8e85de;
$custom-dark: #000000;

JSON

{
  "hex": "#5155ce",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 206
  },
  "hsl": {
    "h": 238.08,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.51658,
    "c": 0.18324,
    "h": 276.4
  },
  "luminance": 0.12703
}

Semantic roles & 50–950 ramp

primary

#5155CE

secondary

#D7D5A4

accent

#DB48DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5155CE

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

Preview Lab → · Contrast checker → · Palette generator →