#4C51CE#4C51CE

#4C51CE is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.6% C 0.189 H 275.6°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#4C51CE
RGB	rgb(76, 81, 206)
HSL	hsl(238, 57%, 55%)
HSV	hsv(238, 63%, 81%)
CMYK	cmyk(63.1%, 60.7%, 0%, 19.2%)
CIE-LAB	lab(41.02, 36.27, -65.45)
CIE-LCH	lch(41.02, 74.83, 298.99°)
OKLab	oklab(50.62% 0.0183 -0.1885)
OKLCH	oklch(50.62% 0.189 275.6)
XYZ	xyz(17.0599, 11.8762, 59.7739)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51CE #CEC94C

analogous

#4C92CE #4C51CE #884CCE

triadic

#4C51CE #CE4C51 #51CE4C

tetradic

#4C51CE #CE4C92 #CEC94C #4CCE88

square

#4C51CE #CE4C92 #CEC94C #4CCE88

split-complementary

#4C51CE #CE884C #92CE4C

monochromatic

#22267D #2F34AD #4C51CE #7C80DB #ACAEE8

Accessibility & contrast

On white

6.22

#4C51CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#4C51CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51CE

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51CE	#FFFFFF	#000000	##FFFFFF
##4C51CE	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D2

Deuteranopia (green-blind)

#005BCC

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4c51ce;
/* rgb */ color: rgb(76, 81, 206);
/* oklch */ color: oklch(50.6% 0.189 275.6);

Tailwind

colors: {
  custom: {
    50: '#8c82de',
    500: '#4c51ce',
    950: '#000000',
  },
}

SCSS

$custom: #4c51ce;
$custom-light: #8c82de;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51ce",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 206
  },
  "hsl": {
    "h": 237.692,
    "s": 57.018,
    "l": 55.294
  },
  "oklch": {
    "l": 0.50618,
    "c": 0.18935,
    "h": 275.6
  },
  "luminance": 0.11878
}

Semantic roles & 50–950 ramp

primary

#4C51CE

secondary

#D6D4A0

accent

#DA48E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4C51CE

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

Preview Lab → · Contrast checker → · Palette generator →