#4C51CA#4C51CA

#4C51CA is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.3% C 0.184 H 275.8°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4C51CA
RGB	rgb(76, 81, 202)
HSL	hsl(238, 54%, 55%)
HSV	hsv(238, 62%, 79%)
CMYK	cmyk(62.4%, 59.9%, 0%, 20.8%)
CIE-LAB	lab(40.71, 34.93, -63.65)
CIE-LCH	lch(40.71, 72.60, 298.76°)
OKLab	oklab(50.29% 0.0185 -0.1831)
OKLCH	oklch(50.29% 0.184 275.8)
XYZ	xyz(16.5801, 11.6843, 57.2472)
Luminance	0.1169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51CA #CAC54C

analogous

#4C90CA #4C51CA #864CCA

triadic

#4C51CA #CA4C51 #51CA4C

tetradic

#4C51CA #CA4C90 #CAC54C #4CCA86

square

#4C51CA #CA4C90 #CAC54C #4CCA86

split-complementary

#4C51CA #CA864C #90CA4C

monochromatic

#242778 #3236A7 #4C51CA #7B7FD8 #AAADE6

Accessibility & contrast

On white

6.29

#4C51CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4C51CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51CA

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51CA	#FFFFFF	#000000	##FFFFFF
##4C51CA	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4c51ca;
/* rgb */ color: rgb(76, 81, 202);
/* oklch */ color: oklch(50.3% 0.184 275.8);

Tailwind

colors: {
  custom: {
    50: '#8b82db',
    500: '#4c51ca',
    950: '#000000',
  },
}

SCSS

$custom: #4c51ca;
$custom-light: #8b82db;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51ca",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 202
  },
  "hsl": {
    "h": 237.619,
    "s": 54.31,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50294,
    "c": 0.18407,
    "h": 275.8
  },
  "luminance": 0.11686
}

Semantic roles & 50–950 ramp

primary

#4C51CA

secondary

#D4D19E

accent

#D84ADE

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4C51CA

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

Preview Lab → · Contrast checker → · Palette generator →