#5C57CB#5C57CB

#5C57CB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.6% C 0.174 H 280.5°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#5C57CB
RGB	rgb(92, 87, 203)
HSL	hsl(243, 53%, 57%)
HSV	hsv(243, 57%, 80%)
CMYK	cmyk(54.7%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(43.36, 34.40, -59.86)
CIE-LCH	lch(43.36, 69.04, 299.88°)
OKLab	oklab(52.57% 0.0317 -0.1715)
OKLCH	oklch(52.57% 0.174 280.5)
XYZ	xyz(18.5980, 13.4023, 58.0952)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5C57CB #C6CB57

analogous

#578CCB #5C57CB #9657CB

triadic

#5C57CB #CB5C57 #57CB5C

tetradic

#5C57CB #CB578C #C6CB57 #57CB96

square

#5C57CB #CB578C #C6CB57 #57CB96

split-complementary

#5C57CB #CB9657 #8CCB57

monochromatic

#2B2880 #3B36AF #5C57CB #8986D9 #B7B4E8

Accessibility & contrast

On white

5.71

#5C57CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#5C57CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5C57CB

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5C57CB	#FFFFFF	#000000	##FFFFFF
##5C57CB	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#277288

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5c57cb;
/* rgb */ color: rgb(92, 87, 203);
/* oklch */ color: oklch(52.6% 0.174 280.5);

Tailwind

colors: {
  custom: {
    50: '#9386dc',
    500: '#5c57cb',
    950: '#000000',
  },
}

SCSS

$custom: #5c57cb;
$custom-light: #9386dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5c57cb",
  "rgb": {
    "r": 92,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 242.586,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.52572,
    "c": 0.17445,
    "h": 280.5
  },
  "luminance": 0.13403
}

Semantic roles & 50–950 ramp

primary

#5C57CB

secondary

#D5D7A7

accent

#DC4CD6

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5C57CB

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

Preview Lab → · Contrast checker → · Palette generator →