#5751CA#5751CA

#5751CA is a mid, vivid blue. Relative luminance 0.122; OKLCH L 51.1% C 0.182 H 280.0°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#5751CA
RGB	rgb(87, 81, 202)
HSL	hsl(243, 53%, 55%)
HSV	hsv(243, 60%, 79%)
CMYK	cmyk(56.9%, 59.9%, 0%, 20.8%)
CIE-LAB	lab(41.49, 36.80, -62.34)
CIE-LCH	lch(41.49, 72.39, 300.56°)
OKLab	oklab(51.07% 0.0316 -0.179)
OKLCH	oklch(51.07% 0.182 280)
XYZ	xyz(17.5302, 12.1742, 57.2918)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5751CA #C4CA51

analogous

#5187CA #5751CA #9351CA

triadic

#5751CA #CA5751 #51CA57

tetradic

#5751CA #CA5187 #C4CA51 #51CA93

square

#5751CA #CA5187 #C4CA51 #51CA93

split-complementary

#5751CA #CA9351 #87CA51

monochromatic

#2A257B #3A34AA #5751CA #8480D8 #B2AFE7

Accessibility & contrast

On white

6.11

#5751CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#5751CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5751CA

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5751CA	#FFFFFF	#000000	##FFFFFF
##5751CA	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CE

Deuteranopia (green-blind)

#005DC8

Tritanopia (blue-blind)

#156E86

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5751ca;
/* rgb */ color: rgb(87, 81, 202);
/* oklch */ color: oklch(51.1% 0.182 280.0);

Tailwind

colors: {
  custom: {
    50: '#9182db',
    500: '#5751ca',
    950: '#000000',
  },
}

SCSS

$custom: #5751ca;
$custom-light: #9182db;
$custom-dark: #000000;

JSON

{
  "hex": "#5751ca",
  "rgb": {
    "r": 87,
    "g": 81,
    "b": 202
  },
  "hsl": {
    "h": 242.975,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.51071,
    "c": 0.18177,
    "h": 280
  },
  "luminance": 0.12175
}

Semantic roles & 50–950 ramp

primary

#5751CA

secondary

#D2D5A2

accent

#DD4BD5

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5751CA

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

Preview Lab → · Contrast checker → · Palette generator →