#4E57A4#4E57A4

#4E57A4 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.8% C 0.123 H 275.9°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#4E57A4
RGB	rgb(78, 87, 164)
HSL	hsl(234, 36%, 47%)
HSV	hsv(234, 52%, 64%)
CMYK	cmyk(52.4%, 47%, 0%, 35.7%)
CIE-LAB	lab(39.77, 18.84, -42.85)
CIE-LCH	lch(39.77, 46.81, 293.74°)
OKLab	oklab(48.8% 0.0125 -0.1219)
OKLCH	oklch(48.8% 0.123 275.9)
XYZ	xyz(13.2488, 11.1156, 36.5622)
Luminance	0.1112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57A4 #A49B4E

analogous

#4E82A4 #4E57A4 #704EA4

triadic

#4E57A4 #A44E57 #57A44E

tetradic

#4E57A4 #A44E82 #A49B4E #4EA470

square

#4E57A4 #A44E82 #A49B4E #4EA470

split-complementary

#4E57A4 #A4704E #82A44E

monochromatic

#272B51 #3A417B #4E57A4 #737BBC #9CA2D0

Accessibility & contrast

On white

6.52

#4E57A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#4E57A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57A4

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57A4	#FFFFFF	#000000	##FFFFFF
##4E57A4	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3561A7

Deuteranopia (green-blind)

#2C5AA2

Tritanopia (blue-blind)

#296875

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4e57a4;
/* rgb */ color: rgb(78, 87, 164);
/* oklch */ color: oklch(48.8% 0.123 275.9);

Tailwind

colors: {
  custom: {
    50: '#8686bf',
    500: '#4e57a4',
    950: '#000000',
  },
}

SCSS

$custom: #4e57a4;
$custom-light: #8686bf;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57a4",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 233.721,
    "s": 35.537,
    "l": 47.451
  },
  "oklch": {
    "l": 0.488,
    "c": 0.12252,
    "h": 275.9
  },
  "luminance": 0.11116
}

Semantic roles & 50–950 ramp

primary

#4E57A4

secondary

#BDB891

accent

#C05CCC

background

#F8F8FB

surface

#F0EFF7

border

#CBCAD0

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #4E57A4

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

Preview Lab → · Contrast checker → · Palette generator →