#4C51CD#4C51CD

#4C51CD is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.5% C 0.188 H 275.6°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4C51CD
RGB	rgb(76, 81, 205)
HSL	hsl(238, 56%, 55%)
HSV	hsv(238, 63%, 80%)
CMYK	cmyk(62.9%, 60.5%, 0%, 19.6%)
CIE-LAB	lab(40.94, 35.94, -65.00)
CIE-LCH	lch(40.94, 74.28, 298.94°)
OKLab	oklab(50.54% 0.0184 -0.1871)
OKLCH	oklch(50.54% 0.188 275.6)
XYZ	xyz(16.9388, 11.8277, 59.1361)
Luminance	0.1183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51CD #CDC84C

analogous

#4C92CD #4C51CD #874CCD

triadic

#4C51CD #CD4C51 #51CD4C

tetradic

#4C51CD #CD4C92 #CDC84C #4CCD87

square

#4C51CD #CD4C92 #CDC84C #4CCD87

split-complementary

#4C51CD #CD874C #92CD4C

monochromatic

#23267C #3035AC #4C51CD #7C80DA #ACAEE8

Accessibility & contrast

On white

6.24

#4C51CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#4C51CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51CD

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51CD	#FFFFFF	#000000	##FFFFFF
##4C51CD	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#007087

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4c51cd;
/* rgb */ color: rgb(76, 81, 205);
/* oklch */ color: oklch(50.5% 0.188 275.6);

Tailwind

colors: {
  custom: {
    50: '#8c82dd',
    500: '#4c51cd',
    950: '#000000',
  },
}

SCSS

$custom: #4c51cd;
$custom-light: #8c82dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51cd",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 205
  },
  "hsl": {
    "h": 237.674,
    "s": 56.332,
    "l": 55.098
  },
  "oklch": {
    "l": 0.50537,
    "c": 0.18803,
    "h": 275.6
  },
  "luminance": 0.11829
}

Semantic roles & 50–950 ramp

primary

#4C51CD

secondary

#D5D39F

accent

#DA48E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4C51CD

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

Preview Lab → · Contrast checker → · Palette generator →