#5159CD#5159CD

#5159CD is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.3% C 0.177 H 275.5°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#5159CD
RGB	rgb(81, 89, 205)
HSL	hsl(236, 55%, 56%)
HSV	hsv(236, 60%, 80%)
CMYK	cmyk(60.5%, 56.6%, 0%, 19.6%)
CIE-LAB	lab(43.21, 31.81, -61.30)
CIE-LCH	lch(43.21, 69.06, 297.42°)
OKLab	oklab(52.31% 0.0169 -0.176)
OKLCH	oklch(52.31% 0.177 275.5)
XYZ	xyz(17.9816, 13.3005, 59.3654)
Luminance	0.1330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159CD #CDC551

analogous

#5197CD #5159CD #8751CD

triadic

#5159CD #CD5159 #59CD51

tetradic

#5159CD #CD5197 #CDC551 #51CD87

square

#5159CD #CD5197 #CDC551 #51CD87

split-complementary

#5159CD #CD8751 #97CD51

monochromatic

#252A7F #323AAF #5159CD #8186DB #B0B4E8

Accessibility & contrast

On white

5.74

#5159CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#5159CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159CD

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159CD	#FFFFFF	#000000	##FFFFFF
##5159CD	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD1

Deuteranopia (green-blind)

#0061CB

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5159cd;
/* rgb */ color: rgb(81, 89, 205);
/* oklch */ color: oklch(52.3% 0.177 275.5);

Tailwind

colors: {
  custom: {
    50: '#8e88dd',
    500: '#5159cd',
    950: '#000000',
  },
}

SCSS

$custom: #5159cd;
$custom-light: #8e88dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5159cd",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 205
  },
  "hsl": {
    "h": 236.129,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.52305,
    "c": 0.17684,
    "h": 275.5
  },
  "luminance": 0.13302
}

Semantic roles & 50–950 ramp

primary

#5159CD

secondary

#D7D3A3

accent

#D549DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5159CD

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

Preview Lab → · Contrast checker → · Palette generator →