#4E51DD#4E51DD

#4E51DD is a mid, highly saturated blue. Relative luminance 0.127; OKLCH L 52.0% C 0.208 H 275.5°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4E51DD
RGB	rgb(78, 81, 221)
HSL	hsl(239, 68%, 59%)
HSV	hsv(239, 65%, 87%)
CMYK	cmyk(64.7%, 63.3%, 0%, 13.3%)
CIE-LAB	lab(42.34, 41.54, -71.89)
CIE-LCH	lch(42.34, 83.03, 300.02°)
OKLab	oklab(52% 0.0198 -0.2073)
OKLCH	oklch(52% 0.208 275.5)
XYZ	xyz(19.1312, 12.7234, 69.8403)
Luminance	0.1273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51DD #DDDA4E

analogous

#4E98DD #4E51DD #924EDD

triadic

#4E51DD #DD4E51 #51DD4E

tetradic

#4E51DD #DD4E98 #DDDA4E #4EDD92

square

#4E51DD #DD4E98 #DDDA4E #4EDD92

split-complementary

#4E51DD #DD924E #98DD4E

monochromatic

#1C1F94 #262AC7 #4E51DD #8183E7 #B5B6F1

Accessibility & contrast

On white

5.92

#4E51DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4E51DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51DD

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51DD	#FFFFFF	#000000	##FFFFFF
##4E51DD	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AE1

Deuteranopia (green-blind)

#005EDA

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4e51dd;
/* rgb */ color: rgb(78, 81, 221);
/* oklch */ color: oklch(52.0% 0.208 275.5);

Tailwind

colors: {
  custom: {
    50: '#8f82e9',
    500: '#4e51dd',
    950: '#000000',
  },
}

SCSS

$custom: #4e51dd;
$custom-light: #8f82e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51dd",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 221
  },
  "hsl": {
    "h": 238.741,
    "s": 67.773,
    "l": 58.627
  },
  "oklch": {
    "l": 0.51996,
    "c": 0.20825,
    "h": 275.5
  },
  "luminance": 0.12725
}

Semantic roles & 50–950 ramp

primary

#4E51DD

secondary

#E0DEA7

accent

#E73DEB

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51DD

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

Preview Lab → · Contrast checker → · Palette generator →