#4C51E7#4C51E7

#4C51E7 is a mid, highly saturated blue. Relative luminance 0.132; OKLCH L 52.7% C 0.221 H 274.3°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#4C51E7
RGB	rgb(76, 81, 231)
HSL	hsl(238, 76%, 60%)
HSV	hsv(238, 67%, 91%)
CMYK	cmyk(67.1%, 64.9%, 0%, 9.4%)
CIE-LAB	lab(43.05, 44.57, -76.43)
CIE-LCH	lch(43.05, 88.47, 300.25°)
OKLab	oklab(52.73% 0.0168 -0.2206)
OKLCH	oklch(52.73% 0.221 274.3)
XYZ	xyz(20.3419, 13.1890, 77.0595)
Luminance	0.1319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51E7 #E7E24C

analogous

#4C9EE7 #4C51E7 #954CE7

triadic

#4C51E7 #E74C51 #51E74C

tetradic

#4C51E7 #E74C9E #E7E24C #4CE795

square

#4C51E7 #E74C9E #E7E24C #4CE795

split-complementary

#4C51E7 #E7954C #9EE74C

monochromatic

#161AA3 #1D23D9 #4C51E7 #8285EE #B8BAF5

Accessibility & contrast

On white

5.77

#4C51E7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#4C51E7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51E7

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51E7	#FFFFFF	#000000	##FFFFFF
##4C51E7	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DEC

Deuteranopia (green-blind)

#005FE4

Tritanopia (blue-blind)

#007895

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4c51e7;
/* rgb */ color: rgb(76, 81, 231);
/* oklch */ color: oklch(52.7% 0.221 274.3);

Tailwind

colors: {
  custom: {
    50: '#9082f0',
    500: '#4c51e7',
    950: '#000000',
  },
}

SCSS

$custom: #4c51e7;
$custom-light: #9082f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51e7",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 231
  },
  "hsl": {
    "h": 238.065,
    "s": 76.355,
    "l": 60.196
  },
  "oklch": {
    "l": 0.52732,
    "c": 0.22129,
    "h": 274.3
  },
  "luminance": 0.13191
}

Semantic roles & 50–950 ramp

primary

#4C51E7

secondary

#E5E3AA

accent

#D20DD9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A17

muted

#7E7C85

Preview Lab

Preview with #4C51E7

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

Preview Lab → · Contrast checker → · Palette generator →