#4C57BC#4C57BC

#4C57BC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.3% C 0.157 H 274.6°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4C57BC
RGB	rgb(76, 87, 188)
HSL	hsl(234, 46%, 52%)
HSV	hsv(234, 60%, 74%)
CMYK	cmyk(59.6%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(41.19, 26.45, -54.73)
CIE-LCH	lch(41.19, 60.79, 295.79°)
OKLab	oklab(50.33% 0.0126 -0.1569)
OKLCH	oklch(50.33% 0.157 274.6)
XYZ	xyz(15.4628, 11.9825, 49.0652)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57BC #BCB14C

analogous

#4C8FBC #4C57BC #794CBC

triadic

#4C57BC #BC4C57 #57BC4C

tetradic

#4C57BC #BC4C8F #BCB14C #4CBC79

square

#4C57BC #BC4C8F #BCB14C #4CBC79

split-complementary

#4C57BC #BC794C #8FBC4C

monochromatic

#272D67 #374094 #4C57BC #7981CD #A5ABDD

Accessibility & contrast

On white

6.18

#4C57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4C57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57BC

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57BC	#FFFFFF	#000000	##FFFFFF
##4C57BC	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1766C0

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4c57bc;
/* rgb */ color: rgb(76, 87, 188);
/* oklch */ color: oklch(50.3% 0.157 274.6);

Tailwind

colors: {
  custom: {
    50: '#8886d1',
    500: '#4c57bc',
    950: '#000000',
  },
}

SCSS

$custom: #4c57bc;
$custom-light: #8886d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57bc",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 234.107,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50329,
    "c": 0.15737,
    "h": 274.6
  },
  "luminance": 0.11984
}

Semantic roles & 50–950 ramp

primary

#4C57BC

secondary

#CAC699

accent

#C853D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4C57BC

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

Preview Lab → · Contrast checker → · Palette generator →