#4C57CE#4C57CE

#4C57CE is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.7% C 0.182 H 274.1°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#4C57CE
RGB	rgb(76, 87, 206)
HSL	hsl(235, 57%, 55%)
HSV	hsv(235, 63%, 81%)
CMYK	cmyk(63.1%, 57.8%, 0%, 19.2%)
CIE-LAB	lab(42.47, 32.55, -63.09)
CIE-LCH	lch(42.47, 70.99, 297.29°)
OKLab	oklab(51.69% 0.0131 -0.1815)
OKLCH	oklch(51.69% 0.182 274.1)
XYZ	xyz(17.5256, 12.8076, 59.9291)
Luminance	0.1281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57CE #CEC34C

analogous

#4C98CE #4C57CE #824CCE

triadic

#4C57CE #CE4C57 #57CE4C

tetradic

#4C57CE #CE4C98 #CEC34C #4CCE82

square

#4C57CE #CE4C98 #CEC34C #4CCE82

split-complementary

#4C57CE #CE824C #98CE4C

monochromatic

#222A7D #2F3AAD #4C57CE #7C84DB #ACB1E8

Accessibility & contrast

On white

5.90

#4C57CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4C57CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57CE

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57CE	#FFFFFF	#000000	##FFFFFF
##4C57CE	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD2

Deuteranopia (green-blind)

#005FCC

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4c57ce;
/* rgb */ color: rgb(76, 87, 206);
/* oklch */ color: oklch(51.7% 0.182 274.1);

Tailwind

colors: {
  custom: {
    50: '#8b86de',
    500: '#4c57ce',
    950: '#000000',
  },
}

SCSS

$custom: #4c57ce;
$custom-light: #8b86de;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57ce",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 206
  },
  "hsl": {
    "h": 234.923,
    "s": 57.018,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51693,
    "c": 0.18193,
    "h": 274.1
  },
  "luminance": 0.12809
}

Semantic roles & 50–950 ramp

primary

#4C57CE

secondary

#D6D1A0

accent

#D348E0

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4C57CE

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

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