#4B51DE#4B51DE

#4B51DE is a mid, highly saturated blue. Relative luminance 0.127; OKLCH L 51.9% C 0.210 H 274.5°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#4B51DE
RGB	rgb(75, 81, 222)
HSL	hsl(238, 69%, 58%)
HSV	hsv(238, 66%, 87%)
CMYK	cmyk(66.2%, 63.5%, 0%, 12.9%)
CIE-LAB	lab(42.24, 41.46, -72.64)
CIE-LCH	lch(42.24, 83.65, 299.72°)
OKLab	oklab(51.89% 0.0164 -0.2096)
OKLCH	oklch(51.89% 0.21 274.5)
XYZ	xyz(19.0245, 12.6529, 70.5328)
Luminance	0.1265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B51DE #DED84B

analogous

#4B9ADE #4B51DE #8E4BDE

triadic

#4B51DE #DE4B51 #51DE4B

tetradic

#4B51DE #DE4B9A #DED84B #4BDE8E

square

#4B51DE #DE4B9A #DED84B #4BDE8E

split-complementary

#4B51DE #DE8E4B #9ADE4B

monochromatic

#1B2094 #252BC7 #4B51DE #7F83E7 #B2B5F1

Accessibility & contrast

On white

5.95

#4B51DE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#4B51DE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B51DE

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B51DE	#FFFFFF	#000000	##FFFFFF
##4B51DE	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)

#006AE2

Deuteranopia (green-blind)

#005DDB

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4b51de;
/* rgb */ color: rgb(75, 81, 222);
/* oklch */ color: oklch(51.9% 0.210 274.5);

Tailwind

colors: {
  custom: {
    50: '#8e82e9',
    500: '#4b51de',
    950: '#000000',
  },
}

SCSS

$custom: #4b51de;
$custom-light: #8e82e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b51de",
  "rgb": {
    "r": 75,
    "g": 81,
    "b": 222
  },
  "hsl": {
    "h": 237.551,
    "s": 69.014,
    "l": 58.235
  },
  "oklch": {
    "l": 0.51893,
    "c": 0.21023,
    "h": 274.5
  },
  "luminance": 0.12655
}

Semantic roles & 50–950 ramp

primary

#4B51DE

secondary

#E0DDA5

accent

#E53CEC

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4B51DE

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

Preview Lab → · Contrast checker → · Palette generator →