#5158CB#5158CB

#5158CB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 52.0% C 0.175 H 275.8°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#5158CB
RGB	rgb(81, 88, 203)
HSL	hsl(237, 54%, 56%)
HSV	hsv(237, 60%, 80%)
CMYK	cmyk(60.1%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(42.82, 31.76, -60.78)
CIE-LCH	lch(42.82, 68.58, 297.59°)
OKLab	oklab(51.97% 0.0178 -0.1745)
OKLCH	oklch(51.97% 0.175 275.8)
XYZ	xyz(17.6591, 13.0392, 58.0746)
Luminance	0.1304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5158CB #CBC451

analogous

#5195CB #5158CB #8751CB

triadic

#5158CB #CB5158 #58CB51

tetradic

#5158CB #CB5195 #CBC451 #51CB87

square

#5158CB #CB5195 #CBC451 #51CB87

split-complementary

#5158CB #CB8751 #95CB51

monochromatic

#252A7C #333AAC #5158CB #8085D9 #AFB2E7

Accessibility & contrast

On white

5.82

#5158CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#5158CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5158CB

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5158CB	#FFFFFF	#000000	##FFFFFF
##5158CB	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5158cb;
/* rgb */ color: rgb(81, 88, 203);
/* oklch */ color: oklch(52.0% 0.175 275.8);

Tailwind

colors: {
  custom: {
    50: '#8d87dc',
    500: '#5158cb',
    950: '#000000',
  },
}

SCSS

$custom: #5158cb;
$custom-light: #8d87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5158cb",
  "rgb": {
    "r": 81,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 236.557,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.51969,
    "c": 0.17542,
    "h": 275.8
  },
  "luminance": 0.13041
}

Semantic roles & 50–950 ramp

primary

#5158CB

secondary

#D5D2A3

accent

#D54ADD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5158CB

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

Preview Lab → · Contrast checker → · Palette generator →