#5159E9#5159E9

#5159E9 is a mid, highly saturated blue. Relative luminance 0.148; OKLCH L 54.5% C 0.213 H 274.4°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#5159E9
RGB	rgb(81, 89, 233)
HSL	hsl(237, 78%, 62%)
HSV	hsv(237, 65%, 91%)
CMYK	cmyk(65.2%, 61.8%, 0%, 8.6%)
CIE-LAB	lab(45.33, 41.11, -73.82)
CIE-LCH	lch(45.33, 84.50, 299.12°)
OKLab	oklab(54.53% 0.0163 -0.2128)
OKLCH	oklch(54.53% 0.213 274.4)
XYZ	xyz(21.6688, 14.7754, 78.7850)
Luminance	0.1478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159E9 #E9E151

analogous

#51A5E9 #5159E9 #9551E9

triadic

#5159E9 #E95159 #59E951

tetradic

#5159E9 #E951A5 #E9E151 #51E995

square

#5159E9 #E951A5 #E9E151 #51E995

split-complementary

#5159E9 #E99551 #A5E951

monochromatic

#161DAA #1C27E0 #5159E9 #878DF0 #BEC1F7

Accessibility & contrast

On white

5.31

#5159E9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#5159E9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159E9

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159E9	#FFFFFF	#000000	##FFFFFF
##5159E9	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072EE

Deuteranopia (green-blind)

#0065E6

Tritanopia (blue-blind)

#007D99

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5159e9;
/* rgb */ color: rgb(81, 89, 233);
/* oklch */ color: oklch(54.5% 0.213 274.4);

Tailwind

colors: {
  custom: {
    50: '#9388f1',
    500: '#5159e9',
    950: '#000000',
  },
}

SCSS

$custom: #5159e9;
$custom-light: #9388f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5159e9",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 233
  },
  "hsl": {
    "h": 236.842,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.54528,
    "c": 0.21346,
    "h": 274.4
  },
  "luminance": 0.14777
}

Semantic roles & 50–950 ramp

primary

#5159E9

secondary

#E7E4AF

accent

#CF0CDA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #5159E9

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

Preview Lab → · Contrast checker → · Palette generator →