#4E51A4#4E51A4

#4E51A4 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.6% C 0.131 H 278.6°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#4E51A4
RGB	rgb(78, 81, 164)
HSL	hsl(238, 36%, 47%)
HSV	hsv(238, 52%, 64%)
CMYK	cmyk(52.4%, 50.6%, 0%, 35.7%)
CIE-LAB	lab(38.17, 22.68, -45.42)
CIE-LCH	lch(38.17, 50.77, 296.54°)
OKLab	oklab(47.59% 0.0196 -0.1295)
OKLCH	oklch(47.59% 0.131 278.6)
XYZ	xyz(12.7831, 10.1841, 36.4069)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51A4 #A4A14E

analogous

#4E7CA4 #4E51A4 #764EA4

triadic

#4E51A4 #A44E51 #51A44E

tetradic

#4E51A4 #A44E7C #A4A14E #4EA476

square

#4E51A4 #A44E7C #A4A14E #4EA476

split-complementary

#4E51A4 #A4764E #7CA44E

monochromatic

#272851 #3A3D7B #4E51A4 #7375BC #9C9ED0

Accessibility & contrast

On white

6.91

#4E51A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#4E51A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51A4

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51A4	#FFFFFF	#000000	##FFFFFF
##4E51A4	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295DA7

Deuteranopia (green-blind)

#2057A2

Tritanopia (blue-blind)

#2A6373

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4e51a4;
/* rgb */ color: rgb(78, 81, 164);
/* oklch */ color: oklch(47.6% 0.131 278.6);

Tailwind

colors: {
  custom: {
    50: '#8681bf',
    500: '#4e51a4',
    950: '#000000',
  },
}

SCSS

$custom: #4e51a4;
$custom-light: #8681bf;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51a4",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 164
  },
  "hsl": {
    "h": 237.907,
    "s": 35.537,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47587,
    "c": 0.13096,
    "h": 278.6
  },
  "luminance": 0.10185
}

Semantic roles & 50–950 ramp

primary

#4E51A4

secondary

#BDBB91

accent

#C85CCC

background

#F8F7FB

surface

#F0EEF7

border

#CBC9D0

text

#0C0A12

muted

#7D7C81

Preview Lab

Preview with #4E51A4

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

Preview Lab → · Contrast checker → · Palette generator →