#4E51D8#4E51D8

#4E51D8 is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.6% C 0.202 H 275.7°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4E51D8
RGB	rgb(78, 81, 216)
HSL	hsl(239, 64%, 58%)
HSV	hsv(239, 64%, 85%)
CMYK	cmyk(63.9%, 62.5%, 0%, 15.3%)
CIE-LAB	lab(41.94, 39.90, -69.69)
CIE-LCH	lch(41.94, 80.30, 299.79°)
OKLab	oklab(51.58% 0.0202 -0.2008)
OKLCH	oklch(51.58% 0.202 275.7)
XYZ	xyz(18.4749, 12.4609, 66.3840)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51D8 #D8D54E

analogous

#4E96D8 #4E51D8 #904ED8

triadic

#4E51D8 #D84E51 #51D84E

tetradic

#4E51D8 #D84E96 #D8D54E #4ED890

square

#4E51D8 #D84E96 #D8D54E #4ED890

split-complementary

#4E51D8 #D8904E #96D84E

monochromatic

#1F218D #2A2DBF #4E51D8 #8082E3 #B2B4EE

Accessibility & contrast

On white

6.01

#4E51D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#4E51D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51D8

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51D8	#FFFFFF	#000000	##FFFFFF
##4E51D8	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DC

Deuteranopia (green-blind)

#005DD5

Tritanopia (blue-blind)

#00738D

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4e51d8;
/* rgb */ color: rgb(78, 81, 216);
/* oklch */ color: oklch(51.6% 0.202 275.7);

Tailwind

colors: {
  custom: {
    50: '#8f82e5',
    500: '#4e51d8',
    950: '#000000',
  },
}

SCSS

$custom: #4e51d8;
$custom-light: #8f82e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51d8",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 216
  },
  "hsl": {
    "h": 238.696,
    "s": 63.889,
    "l": 57.647
  },
  "oklch": {
    "l": 0.51575,
    "c": 0.20186,
    "h": 275.7
  },
  "luminance": 0.12462
}

Semantic roles & 50–950 ramp

primary

#4E51D8

secondary

#DDDBA5

accent

#E341E7

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51D8

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

Preview Lab → · Contrast checker → · Palette generator →