#5159CE#5159CE

#5159CE is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.4% C 0.178 H 275.4°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#5159CE
RGB	rgb(81, 89, 206)
HSL	hsl(236, 56%, 56%)
HSV	hsv(236, 61%, 81%)
CMYK	cmyk(60.7%, 56.8%, 0%, 19.2%)
CIE-LAB	lab(43.28, 32.14, -61.76)
CIE-LCH	lch(43.28, 69.62, 297.49°)
OKLab	oklab(52.38% 0.0169 -0.1774)
OKLCH	oklch(52.38% 0.178 275.4)
XYZ	xyz(18.1027, 13.3489, 60.0032)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5159CE #CEC651

analogous

#5198CE #5159CE #8851CE

triadic

#5159CE #CE5159 #59CE51

tetradic

#5159CE #CE5198 #CEC651 #51CE88

square

#5159CE #CE5198 #CEC651 #51CE88

split-complementary

#5159CE #CE8851 #98CE51

monochromatic

#242A80 #323AB0 #5159CE #8187DB #B1B4E9

Accessibility & contrast

On white

5.72

#5159CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#5159CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5159CE

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5159CE	#FFFFFF	#000000	##FFFFFF
##5159CE	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD2

Deuteranopia (green-blind)

#0061CC

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5159ce;
/* rgb */ color: rgb(81, 89, 206);
/* oklch */ color: oklch(52.4% 0.178 275.4);

Tailwind

colors: {
  custom: {
    50: '#8e88de',
    500: '#5159ce',
    950: '#000000',
  },
}

SCSS

$custom: #5159ce;
$custom-light: #8e88de;
$custom-dark: #000000;

JSON

{
  "hex": "#5159ce",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 206
  },
  "hsl": {
    "h": 236.16,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.52381,
    "c": 0.17819,
    "h": 275.4
  },
  "luminance": 0.1335
}

Semantic roles & 50–950 ramp

primary

#5159CE

secondary

#D7D4A4

accent

#D648DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5159CE

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

Preview Lab → · Contrast checker → · Palette generator →