#4C57AC#4C57AC

#4C57AC is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.135 H 274.8°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#4C57AC
RGB	rgb(76, 87, 172)
HSL	hsl(233, 39%, 49%)
HSV	hsv(233, 56%, 67%)
CMYK	cmyk(55.8%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(40.13, 21.06, -47.03)
CIE-LCH	lch(40.13, 51.53, 294.12°)
OKLab	oklab(49.19% 0.0112 -0.1342)
OKLCH	oklch(49.19% 0.135 274.8)
XYZ	xyz(13.8327, 11.3305, 40.4798)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57AC #ACA14C

analogous

#4C87AC #4C57AC #714CAC

triadic

#4C57AC #AC4C57 #57AC4C

tetradic

#4C57AC #AC4C87 #ACA14C #4CAC71

square

#4C57AC #AC4C87 #ACA14C #4CAC71

split-complementary

#4C57AC #AC714C #87AC4C

monochromatic

#262C57 #394282 #4C57AC #747DC1 #9EA4D4

Accessibility & contrast

On white

6.43

#4C57AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#4C57AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57AC

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57AC	#FFFFFF	#000000	##FFFFFF
##4C57AC	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E63AF

Deuteranopia (green-blind)

#205BAA

Tritanopia (blue-blind)

#196A79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4c57ac;
/* rgb */ color: rgb(76, 87, 172);
/* oklch */ color: oklch(49.2% 0.135 274.8);

Tailwind

colors: {
  custom: {
    50: '#8686c5',
    500: '#4c57ac',
    950: '#000000',
  },
}

SCSS

$custom: #4c57ac;
$custom-light: #8686c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57ac",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 233.125,
    "s": 38.71,
    "l": 48.627
  },
  "oklch": {
    "l": 0.49194,
    "c": 0.13469,
    "h": 274.8
  },
  "luminance": 0.11331
}

Semantic roles & 50–950 ramp

primary

#4C57AC

secondary

#C1BC93

accent

#C159CF

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4C57AC

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

Preview Lab → · Contrast checker → · Palette generator →