#4C57CA#4C57CA

#4C57CA is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.4% C 0.177 H 274.2°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4C57CA
RGB	rgb(76, 87, 202)
HSL	hsl(235, 54%, 55%)
HSV	hsv(235, 62%, 79%)
CMYK	cmyk(62.4%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(42.18, 31.20, -61.26)
CIE-LCH	lch(42.18, 68.75, 296.99°)
OKLab	oklab(51.38% 0.0131 -0.1761)
OKLCH	oklch(51.38% 0.177 274.2)
XYZ	xyz(17.0458, 12.6158, 57.4025)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57CA #CABF4C

analogous

#4C96CA #4C57CA #804CCA

triadic

#4C57CA #CA4C57 #57CA4C

tetradic

#4C57CA #CA4C96 #CABF4C #4CCA80

square

#4C57CA #CA4C96 #CABF4C #4CCA80

split-complementary

#4C57CA #CA804C #96CA4C

monochromatic

#242B78 #323CA7 #4C57CA #7B83D8 #AAB0E6

Accessibility & contrast

On white

5.96

#4C57CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4C57CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57CA

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57CA	#FFFFFF	#000000	##FFFFFF
##4C57CA	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CE

Deuteranopia (green-blind)

#005EC8

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4c57ca;
/* rgb */ color: rgb(76, 87, 202);
/* oklch */ color: oklch(51.4% 0.177 274.2);

Tailwind

colors: {
  custom: {
    50: '#8b86db',
    500: '#4c57ca',
    950: '#000000',
  },
}

SCSS

$custom: #4c57ca;
$custom-light: #8b86db;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57ca",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 234.762,
    "s": 54.31,
    "l": 54.51
  },
  "oklch": {
    "l": 0.51383,
    "c": 0.17656,
    "h": 274.2
  },
  "luminance": 0.12617
}

Semantic roles & 50–950 ramp

primary

#4C57CA

secondary

#D4CF9E

accent

#D14ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4C57CA

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

Preview Lab → · Contrast checker → · Palette generator →