#4E57CF#4E57CF

#4E57CF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.9% C 0.183 H 274.8°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#4E57CF
RGB	rgb(78, 87, 207)
HSL	hsl(236, 57%, 56%)
HSV	hsv(236, 62%, 81%)
CMYK	cmyk(62.3%, 58%, 0%, 18.8%)
CIE-LAB	lab(42.67, 33.22, -63.34)
CIE-LCH	lch(42.67, 71.52, 297.67°)
OKLab	oklab(51.9% 0.0153 -0.1821)
OKLCH	oklch(51.9% 0.183 274.8)
XYZ	xyz(17.8089, 12.9396, 60.5785)
Luminance	0.1294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57CF #CFC64E

analogous

#4E97CF #4E57CF #854ECF

triadic

#4E57CF #CF4E57 #57CF4E

tetradic

#4E57CF #CF4E97 #CFC64E #4ECF85

square

#4E57CF #CF4E97 #CFC64E #4ECF85

split-complementary

#4E57CF #CF854E #97CF4E

monochromatic

#232980 #3039B0 #4E57CF #7E85DC #AEB2E9

Accessibility & contrast

On white

5.85

#4E57CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#4E57CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57CF

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57CF	#FFFFFF	#000000	##FFFFFF
##4E57CF	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD3

Deuteranopia (green-blind)

#005FCD

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4e57cf;
/* rgb */ color: rgb(78, 87, 207);
/* oklch */ color: oklch(51.9% 0.183 274.8);

Tailwind

colors: {
  custom: {
    50: '#8d86df',
    500: '#4e57cf',
    950: '#000000',
  },
}

SCSS

$custom: #4e57cf;
$custom-light: #8d86df;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57cf",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 235.814,
    "s": 57.333,
    "l": 55.882
  },
  "oklch": {
    "l": 0.51898,
    "c": 0.18277,
    "h": 274.8
  },
  "luminance": 0.12941
}

Semantic roles & 50–950 ramp

primary

#4E57CF

secondary

#D7D3A2

accent

#D647E1

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4E57CF

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

Preview Lab → · Contrast checker → · Palette generator →