#5158BB#5158BB

#5158BB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.153 H 276.4°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#5158BB
RGB	rgb(81, 88, 187)
HSL	hsl(236, 44%, 53%)
HSV	hsv(236, 57%, 73%)
CMYK	cmyk(56.7%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(41.71, 26.45, -53.28)
CIE-LCH	lch(41.71, 59.49, 296.40°)
OKLab	oklab(50.79% 0.0172 -0.1525)
OKLCH	oklch(50.79% 0.153 276.4)
XYZ	xyz(15.8498, 12.3155, 48.5460)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5158BB #BBB451

analogous

#518DBB #5158BB #7F51BB

triadic

#5158BB #BB5158 #58BB51

tetradic

#5158BB #BB518D #BBB451 #51BB7F

square

#5158BB #BB518D #BBB451 #51BB7F

split-complementary

#5158BB #BB7F51 #8DBB51

monochromatic

#292D69 #3A4095 #5158BB #7D82CC #A9ACDD

Accessibility & contrast

On white

6.06

#5158BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#5158BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5158BB

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5158BB	#FFFFFF	#000000	##FFFFFF
##5158BB	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#035EB9

Tritanopia (blue-blind)

#146F81

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5158bb;
/* rgb */ color: rgb(81, 88, 187);
/* oklch */ color: oklch(50.8% 0.153 276.4);

Tailwind

colors: {
  custom: {
    50: '#8b87d0',
    500: '#5158bb',
    950: '#000000',
  },
}

SCSS

$custom: #5158bb;
$custom-light: #8b87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5158bb",
  "rgb": {
    "r": 81,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 236.038,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50788,
    "c": 0.15343,
    "h": 276.4
  },
  "luminance": 0.12317
}

Semantic roles & 50–950 ramp

primary

#5158BB

secondary

#CBC89D

accent

#CB54D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #5158BB

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

Preview Lab → · Contrast checker → · Palette generator →