#4E51DB#4E51DB

#4E51DB is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.8% C 0.206 H 275.6°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4E51DB
RGB	rgb(78, 81, 219)
HSL	hsl(239, 66%, 58%)
HSV	hsv(239, 64%, 86%)
CMYK	cmyk(64.4%, 63%, 0%, 14.1%)
CIE-LAB	lab(42.18, 40.89, -71.01)
CIE-LCH	lch(42.18, 81.94, 299.93°)
OKLab	oklab(51.83% 0.02 -0.2047)
OKLCH	oklch(51.83% 0.206 275.6)
XYZ	xyz(18.8663, 12.6174, 68.4453)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51DB #DBD84E

analogous

#4E98DB #4E51DB #914EDB

triadic

#4E51DB #DB4E51 #51DB4E

tetradic

#4E51DB #DB4E98 #DBD84E #4EDB91

square

#4E51DB #DB4E98 #DBD84E #4EDB91

split-complementary

#4E51DB #DB914E #98DB4E

monochromatic

#1E2091 #282BC4 #4E51DB #8183E5 #B4B5F0

Accessibility & contrast

On white

5.96

#4E51DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4E51DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51DB

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51DB	#FFFFFF	#000000	##FFFFFF
##4E51DB	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADF

Deuteranopia (green-blind)

#005DD8

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4e51db;
/* rgb */ color: rgb(78, 81, 219);
/* oklch */ color: oklch(51.8% 0.206 275.6);

Tailwind

colors: {
  custom: {
    50: '#8f82e7',
    500: '#4e51db',
    950: '#000000',
  },
}

SCSS

$custom: #4e51db;
$custom-light: #8f82e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51db",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 219
  },
  "hsl": {
    "h": 238.723,
    "s": 66.197,
    "l": 58.235
  },
  "oklch": {
    "l": 0.51827,
    "c": 0.2057,
    "h": 275.6
  },
  "luminance": 0.12619
}

Semantic roles & 50–950 ramp

primary

#4E51DB

secondary

#DEDDA6

accent

#E53FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51DB

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

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