#4C51E5#4C51E5

#4C51E5 is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.6% C 0.219 H 274.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#4C51E5
RGB	rgb(76, 81, 229)
HSL	hsl(238, 75%, 60%)
HSV	hsv(238, 67%, 90%)
CMYK	cmyk(66.8%, 64.6%, 0%, 10.2%)
CIE-LAB	lab(42.88, 43.91, -75.57)
CIE-LCH	lch(42.88, 87.40, 300.16°)
OKLab	oklab(52.56% 0.0169 -0.2181)
OKLCH	oklch(52.56% 0.219 274.4)
XYZ	xyz(20.0611, 13.0767, 75.5804)
Luminance	0.1308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51E5 #E5E04C

analogous

#4C9EE5 #4C51E5 #934CE5

triadic

#4C51E5 #E54C51 #51E54C

tetradic

#4C51E5 #E54C9E #E5E04C #4CE593

square

#4C51E5 #E54C9E #E5E04C #4CE593

split-complementary

#4C51E5 #E5934C #9EE54C

monochromatic

#171C9F #1F25D5 #4C51E5 #8185ED #B7B9F5

Accessibility & contrast

On white

5.81

#4C51E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#4C51E5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51E5

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51E5	#FFFFFF	#000000	##FFFFFF
##4C51E5	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CEA

Deuteranopia (green-blind)

#005EE2

Tritanopia (blue-blind)

#007894

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4c51e5;
/* rgb */ color: rgb(76, 81, 229);
/* oklch */ color: oklch(52.6% 0.219 274.4);

Tailwind

colors: {
  custom: {
    50: '#9082ee',
    500: '#4c51e5',
    950: '#000000',
  },
}

SCSS

$custom: #4c51e5;
$custom-light: #9082ee;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51e5",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 229
  },
  "hsl": {
    "h": 238.039,
    "s": 74.634,
    "l": 59.804
  },
  "oklch": {
    "l": 0.52557,
    "c": 0.2188,
    "h": 274.4
  },
  "luminance": 0.13079
}

Semantic roles & 50–950 ramp

primary

#4C51E5

secondary

#E4E2A9

accent

#EB37F1

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A17

muted

#7E7C85

Preview Lab

Preview with #4C51E5

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

Preview Lab → · Contrast checker → · Palette generator →