#4C57CD#4C57CD

#4C57CD is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.6% C 0.181 H 274.2°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#4C57CD
RGB	rgb(76, 87, 205)
HSL	hsl(235, 56%, 55%)
HSV	hsv(235, 63%, 80%)
CMYK	cmyk(62.9%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(42.40, 32.21, -62.63)
CIE-LCH	lch(42.40, 70.43, 297.22°)
OKLab	oklab(51.62% 0.0131 -0.1801)
OKLCH	oklch(51.62% 0.181 274.2)
XYZ	xyz(17.4045, 12.7592, 59.2914)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57CD #CDC24C

analogous

#4C97CD #4C57CD #824CCD

triadic

#4C57CD #CD4C57 #57CD4C

tetradic

#4C57CD #CD4C97 #CDC24C #4CCD82

square

#4C57CD #CD4C97 #CDC24C #4CCD82

split-complementary

#4C57CD #CD824C #97CD4C

monochromatic

#232A7C #303BAC #4C57CD #7C84DA #ACB1E8

Accessibility & contrast

On white

5.91

#4C57CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4C57CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57CD

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57CD	#FFFFFF	#000000	##FFFFFF
##4C57CD	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4c57cd;
/* rgb */ color: rgb(76, 87, 205);
/* oklch */ color: oklch(51.6% 0.181 274.2);

Tailwind

colors: {
  custom: {
    50: '#8b86dd',
    500: '#4c57cd',
    950: '#000000',
  },
}

SCSS

$custom: #4c57cd;
$custom-light: #8b86dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57cd",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 234.884,
    "s": 56.332,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51615,
    "c": 0.1806,
    "h": 274.2
  },
  "luminance": 0.12761
}

Semantic roles & 50–950 ramp

primary

#4C57CD

secondary

#D5D19F

accent

#D348E0

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4C57CD

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

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