#4D63CC#4D63CC

#4D63CC is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.9% C 0.164 H 271.0°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#4D63CC
RGB	rgb(77, 99, 204)
HSL	hsl(230, 55%, 55%)
HSV	hsv(230, 62%, 80%)
CMYK	cmyk(62.3%, 51.5%, 0%, 20%)
CIE-LAB	lab(45.44, 24.50, -57.13)
CIE-LCH	lch(45.44, 62.16, 293.21°)
OKLab	oklab(53.89% 0.003 -0.1638)
OKLCH	oklch(53.89% 0.164 271)
XYZ	xyz(18.4178, 14.8595, 59.0126)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D63CC #CCB64D

analogous

#4DA3CC #4D63CC #764DCC

triadic

#4D63CC #CC4D63 #63CC4D

tetradic

#4D63CC #CC4DA3 #CCB64D #4DCC76

square

#4D63CC #CC4DA3 #CCB64D #4DCC76

split-complementary

#4D63CC #CC764D #A3CC4D

monochromatic

#23337B #3146AB #4D63CC #7D8DDA #ACB6E7

Accessibility & contrast

On white

5.29

#4D63CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#4D63CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D63CC

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D63CC	#FFFFFF	#000000	##FFFFFF
##4D63CC	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2571D0

Deuteranopia (green-blind)

#0066CA

Tritanopia (blue-blind)

#007B8E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4d63cc;
/* rgb */ color: rgb(77, 99, 204);
/* oklch */ color: oklch(53.9% 0.164 271.0);

Tailwind

colors: {
  custom: {
    50: '#8b8fdc',
    500: '#4d63cc',
    950: '#000000',
  },
}

SCSS

$custom: #4d63cc;
$custom-light: #8b8fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#4d63cc",
  "rgb": {
    "r": 77,
    "g": 99,
    "b": 204
  },
  "hsl": {
    "h": 229.606,
    "s": 55.459,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5389,
    "c": 0.1638,
    "h": 271
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#4D63CC

secondary

#D5CCA0

accent

#C549DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4D63CC

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

Preview Lab → · Contrast checker → · Palette generator →