#5159D9#5159D9

#5159D9 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.2% C 0.193 H 275.0°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#5159D9
RGB	rgb(81, 89, 217)
HSL	hsl(236, 64%, 58%)
HSV	hsv(236, 63%, 85%)
CMYK	cmyk(62.7%, 59%, 0%, 14.9%)
CIE-LAB	lab(44.09, 35.81, -66.75)
CIE-LCH	lch(44.09, 75.75, 298.21°)
OKLab	oklab(53.24% 0.0169 -0.1921)
OKLCH	oklch(53.24% 0.193 275)
XYZ	xyz(19.4860, 13.9022, 67.2887)
Luminance	0.1390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159D9 #D9D151

analogous

#519DD9 #5159D9 #8D51D9

triadic

#5159D9 #D95159 #59D951

tetradic

#5159D9 #D9519D #D9D151 #51D98D

square

#5159D9 #D9519D #D9D151 #51D98D

split-complementary

#5159D9 #D98D51 #9DD951

monochromatic

#1F2690 #2A33C2 #5159D9 #8389E4 #B5B9EF

Accessibility & contrast

On white

5.55

#5159D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#5159D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159D9

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159D9	#FFFFFF	#000000	##FFFFFF
##5159D9	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EDD

Deuteranopia (green-blind)

#0062D6

Tritanopia (blue-blind)

#007890

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5159d9;
/* rgb */ color: rgb(81, 89, 217);
/* oklch */ color: oklch(53.2% 0.193 275.0);

Tailwind

colors: {
  custom: {
    50: '#9088e6',
    500: '#5159d9',
    950: '#000000',
  },
}

SCSS

$custom: #5159d9;
$custom-light: #9088e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5159d9",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 217
  },
  "hsl": {
    "h": 236.471,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53235,
    "c": 0.19281,
    "h": 275
  },
  "luminance": 0.13904
}

Semantic roles & 50–950 ramp

primary

#5159D9

secondary

#DEDBA8

accent

#DD41E7

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5159D9

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

Preview Lab → · Contrast checker → · Palette generator →