#4D57CC#4D57CC

#4D57CC is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.6% C 0.179 H 274.6°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#4D57CC
RGB	rgb(77, 87, 204)
HSL	hsl(235, 55%, 55%)
HSV	hsv(235, 62%, 80%)
CMYK	cmyk(62.3%, 57.4%, 0%, 20%)
CIE-LAB	lab(42.39, 32.04, -62.07)
CIE-LCH	lch(42.39, 69.85, 297.30°)
OKLab	oklab(51.6% 0.0142 -0.1784)
OKLCH	oklch(51.6% 0.179 274.6)
XYZ	xyz(17.3643, 12.7524, 58.6614)
Luminance	0.1275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D57CC #CCC24D

analogous

#4D96CC #4D57CC #834DCC

triadic

#4D57CC #CC4D57 #57CC4D

tetradic

#4D57CC #CC4D96 #CCC24D #4DCC83

square

#4D57CC #CC4D96 #CCC24D #4DCC83

split-complementary

#4D57CC #CC834D #96CC4D

monochromatic

#232A7B #313BAB #4D57CC #7D84DA #ACB1E7

Accessibility & contrast

On white

5.91

#4D57CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4D57CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D57CC

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D57CC	#FFFFFF	#000000	##FFFFFF
##4D57CC	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)

#006AD0

Deuteranopia (green-blind)

#005FCA

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4d57cc;
/* rgb */ color: rgb(77, 87, 204);
/* oklch */ color: oklch(51.6% 0.179 274.6);

Tailwind

colors: {
  custom: {
    50: '#8b86dc',
    500: '#4d57cc',
    950: '#000000',
  },
}

SCSS

$custom: #4d57cc;
$custom-light: #8b86dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4d57cc",
  "rgb": {
    "r": 77,
    "g": 87,
    "b": 204
  },
  "hsl": {
    "h": 235.276,
    "s": 55.459,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51601,
    "c": 0.179,
    "h": 274.6
  },
  "luminance": 0.12754
}

Semantic roles & 50–950 ramp

primary

#4D57CC

secondary

#D5D1A0

accent

#D349DF

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4D57CC

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

Preview Lab → · Contrast checker → · Palette generator →