#4E51D5#4E51D5

#4E51D5 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 51.3% C 0.198 H 275.9°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4E51D5
RGB	rgb(78, 81, 213)
HSL	hsl(239, 62%, 57%)
HSV	hsv(239, 63%, 84%)
CMYK	cmyk(63.4%, 62%, 0%, 16.5%)
CIE-LAB	lab(41.70, 38.90, -68.36)
CIE-LCH	lch(41.70, 78.66, 299.64°)
OKLab	oklab(51.33% 0.0203 -0.1969)
OKLCH	oklch(51.33% 0.198 275.9)
XYZ	xyz(18.0906, 12.3072, 64.3601)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51D5 #D5D24E

analogous

#4E94D5 #4E51D5 #8F4ED5

triadic

#4E51D5 #D54E51 #51D54E

tetradic

#4E51D5 #D54E94 #D5D24E #4ED58F

square

#4E51D5 #D54E94 #D5D24E #4ED58F

split-complementary

#4E51D5 #D58F4E #94D54E

monochromatic

#202388 #2C2FBA #4E51D5 #7F82E1 #B1B2EC

Accessibility & contrast

On white

6.07

#4E51D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4E51D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51D5

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51D5	#FFFFFF	#000000	##FFFFFF
##4E51D5	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D9

Deuteranopia (green-blind)

#005CD2

Tritanopia (blue-blind)

#00728B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4e51d5;
/* rgb */ color: rgb(78, 81, 213);
/* oklch */ color: oklch(51.3% 0.198 275.9);

Tailwind

colors: {
  custom: {
    50: '#8e82e3',
    500: '#4e51d5',
    950: '#000000',
  },
}

SCSS

$custom: #4e51d5;
$custom-light: #8e82e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51d5",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 213
  },
  "hsl": {
    "h": 238.667,
    "s": 61.644,
    "l": 57.059
  },
  "oklch": {
    "l": 0.51325,
    "c": 0.198,
    "h": 275.9
  },
  "luminance": 0.12309
}

Semantic roles & 50–950 ramp

primary

#4E51D5

secondary

#DBDAA4

accent

#E143E5

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51D5

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

Preview Lab → · Contrast checker → · Palette generator →