#4E51AA#4E51AA

#4E51AA is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.140 H 278.3°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#4E51AA
RGB	rgb(78, 81, 170)
HSL	hsl(238, 37%, 49%)
HSV	hsv(238, 54%, 67%)
CMYK	cmyk(54.1%, 52.4%, 0%, 33.3%)
CIE-LAB	lab(38.56, 24.65, -48.36)
CIE-LCH	lch(38.56, 54.28, 297.01°)
OKLab	oklab(48.01% 0.0201 -0.1381)
OKLCH	oklch(48.01% 0.14 278.3)
XYZ	xyz(13.3377, 10.4060, 39.3282)
Luminance	0.1041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51AA #AAA74E

analogous

#4E7FAA #4E51AA #794EAA

triadic

#4E51AA #AA4E51 #51AA4E

tetradic

#4E51AA #AA4E7F #AAA74E #4EAA79

square

#4E51AA #AA4E7F #AAA74E #4EAA79

split-complementary

#4E51AA #AA794E #7FAA4E

monochromatic

#282956 #3B3D80 #4E51AA #7578C0 #9FA1D3

Accessibility & contrast

On white

6.82

#4E51AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#4E51AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51AA

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51AA	#FFFFFF	#000000	##FFFFFF
##4E51AA	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAD

Deuteranopia (green-blind)

#1457A8

Tritanopia (blue-blind)

#246575

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4e51aa;
/* rgb */ color: rgb(78, 81, 170);
/* oklch */ color: oklch(48.0% 0.140 278.3);

Tailwind

colors: {
  custom: {
    50: '#8781c4',
    500: '#4e51aa',
    950: '#000000',
  },
}

SCSS

$custom: #4e51aa;
$custom-light: #8781c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51aa",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 170
  },
  "hsl": {
    "h": 238.043,
    "s": 37.097,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48006,
    "c": 0.13959,
    "h": 278.3
  },
  "luminance": 0.10407
}

Semantic roles & 50–950 ramp

primary

#4E51AA

secondary

#C0BF94

accent

#C95BCD

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #4E51AA

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

Preview Lab → · Contrast checker → · Palette generator →