#4E57B3#4E57B3

#4E57B3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.8% C 0.144 H 275.7°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4E57B3
RGB	rgb(78, 87, 179)
HSL	hsl(235, 40%, 50%)
HSV	hsv(235, 56%, 70%)
CMYK	cmyk(56.4%, 51.4%, 0%, 29.8%)
CIE-LAB	lab(40.72, 23.81, -50.21)
CIE-LCH	lch(40.72, 55.57, 295.38°)
OKLab	oklab(49.82% 0.0142 -0.1435)
OKLCH	oklch(49.82% 0.144 275.7)
XYZ	xyz(14.6841, 11.6897, 44.1216)
Luminance	0.1169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57B3 #B3AA4E

analogous

#4E8AB3 #4E57B3 #774EB3

triadic

#4E57B3 #B34E57 #57B34E

tetradic

#4E57B3 #B34E8A #B3AA4E #4EB377

square

#4E57B3 #B34E8A #B3AA4E #4EB377

split-complementary

#4E57B3 #B3774E #8AB34E

monochromatic

#282D5E #3B4289 #4E57B3 #7980C5 #A4A8D8

Accessibility & contrast

On white

6.29

#4E57B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4E57B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57B3

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57B3	#FFFFFF	#000000	##FFFFFF
##4E57B3	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B6

Deuteranopia (green-blind)

#155CB1

Tritanopia (blue-blind)

#156C7C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4e57b3;
/* rgb */ color: rgb(78, 87, 179);
/* oklch */ color: oklch(49.8% 0.144 275.7);

Tailwind

colors: {
  custom: {
    50: '#8886ca',
    500: '#4e57b3',
    950: '#000000',
  },
}

SCSS

$custom: #4e57b3;
$custom-light: #8886ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57b3",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 179
  },
  "hsl": {
    "h": 234.653,
    "s": 39.921,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49818,
    "c": 0.14421,
    "h": 275.7
  },
  "luminance": 0.11691
}

Semantic roles & 50–950 ramp

primary

#4E57B3

secondary

#C5C198

accent

#C558D0

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4E57B3

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

Preview Lab → · Contrast checker → · Palette generator →