#4C51DD#4C51DD

#4C51DD is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.9% C 0.209 H 274.8°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#4C51DD
RGB	rgb(76, 81, 221)
HSL	hsl(238, 68%, 58%)
HSV	hsv(238, 66%, 87%)
CMYK	cmyk(65.6%, 63.3%, 0%, 13.3%)
CIE-LAB	lab(42.22, 41.27, -72.10)
CIE-LCH	lch(42.22, 83.08, 299.78°)
OKLab	oklab(51.87% 0.0176 -0.208)
OKLCH	oklch(51.87% 0.209 274.8)
XYZ	xyz(18.9698, 12.6401, 69.8327)
Luminance	0.1264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51DD #DDD84C

analogous

#4C99DD #4C51DD #8F4CDD

triadic

#4C51DD #DD4C51 #51DD4C

tetradic

#4C51DD #DD4C99 #DDD84C #4CDD8F

square

#4C51DD #DD4C99 #DDD84C #4CDD8F

split-complementary

#4C51DD #DD8F4C #99DD4C

monochromatic

#1C2093 #262BC6 #4C51DD #7F83E7 #B3B5F1

Accessibility & contrast

On white

5.95

#4C51DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#4C51DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51DD

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51DD	#FFFFFF	#000000	##FFFFFF
##4C51DD	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AE1

Deuteranopia (green-blind)

#005DDA

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4c51dd;
/* rgb */ color: rgb(76, 81, 221);
/* oklch */ color: oklch(51.9% 0.209 274.8);

Tailwind

colors: {
  custom: {
    50: '#8f82e9',
    500: '#4c51dd',
    950: '#000000',
  },
}

SCSS

$custom: #4c51dd;
$custom-light: #8f82e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51dd",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 221
  },
  "hsl": {
    "h": 237.931,
    "s": 68.075,
    "l": 58.235
  },
  "oklch": {
    "l": 0.51869,
    "c": 0.20872,
    "h": 274.8
  },
  "luminance": 0.12642
}

Semantic roles & 50–950 ramp

primary

#4C51DD

secondary

#DFDDA6

accent

#E53DEB

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4C51DD

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

Preview Lab → · Contrast checker → · Palette generator →