#4C51DA#4C51DA

#4C51DA is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.6% C 0.205 H 275.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4C51DA
RGB	rgb(76, 81, 218)
HSL	hsl(238, 66%, 58%)
HSV	hsv(238, 65%, 85%)
CMYK	cmyk(65.1%, 62.8%, 0%, 14.5%)
CIE-LAB	lab(41.97, 40.27, -70.79)
CIE-LCH	lch(41.97, 81.44, 299.64°)
OKLab	oklab(51.62% 0.0177 -0.2041)
OKLCH	oklch(51.62% 0.205 275)
XYZ	xyz(18.5736, 12.4817, 67.7465)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51DA #DAD54C

analogous

#4C98DA #4C51DA #8E4CDA

triadic

#4C51DA #DA4C51 #51DA4C

tetradic

#4C51DA #DA4C98 #DAD54C #4CDA8E

square

#4C51DA #DA4C98 #DAD54C #4CDA8E

split-complementary

#4C51DA #DA8E4C #98DA4C

monochromatic

#1D218E #282DC1 #4C51DA #7F82E4 #B1B4EF

Accessibility & contrast

On white

6.01

#4C51DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#4C51DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51DA

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51DA	#FFFFFF	#000000	##FFFFFF
##4C51DA	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DE

Deuteranopia (green-blind)

#005DD7

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4c51da;
/* rgb */ color: rgb(76, 81, 218);
/* oklch */ color: oklch(51.6% 0.205 275.0);

Tailwind

colors: {
  custom: {
    50: '#8e82e6',
    500: '#4c51da',
    950: '#000000',
  },
}

SCSS

$custom: #4c51da;
$custom-light: #8e82e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51da",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 218
  },
  "hsl": {
    "h": 237.887,
    "s": 65.741,
    "l": 57.647
  },
  "oklch": {
    "l": 0.51615,
    "c": 0.20489,
    "h": 275
  },
  "luminance": 0.12483
}

Semantic roles & 50–950 ramp

primary

#4C51DA

secondary

#DDDBA4

accent

#E33FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4C51DA

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

Preview Lab → · Contrast checker → · Palette generator →