#4D63CB#4D63CB

#4D63CB is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.8% C 0.162 H 271.0°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4D63CB
RGB	rgb(77, 99, 203)
HSL	hsl(230, 55%, 55%)
HSV	hsv(230, 62%, 80%)
CMYK	cmyk(62.1%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(45.38, 24.16, -56.66)
CIE-LCH	lch(45.38, 61.60, 293.09°)
OKLab	oklab(53.82% 0.0029 -0.1624)
OKLCH	oklch(53.82% 0.162 271)
XYZ	xyz(18.2983, 14.8117, 58.3830)
Luminance	0.1481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D63CB #CBB54D

analogous

#4DA2CB #4D63CB #764DCB

triadic

#4D63CB #CB4D63 #63CB4D

tetradic

#4D63CB #CB4DA2 #CBB54D #4DCB76

square

#4D63CB #CB4DA2 #CBB54D #4DCB76

split-complementary

#4D63CB #CB764D #A2CB4D

monochromatic

#24337A #3146A9 #4D63CB #7C8DD9 #ACB6E7

Accessibility & contrast

On white

5.30

#4D63CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#4D63CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D63CB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D63CB	#FFFFFF	#000000	##FFFFFF
##4D63CB	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2771CF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#007B8D

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4d63cb;
/* rgb */ color: rgb(77, 99, 203);
/* oklch */ color: oklch(53.8% 0.162 271.0);

Tailwind

colors: {
  custom: {
    50: '#8b8fdb',
    500: '#4d63cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d63cb;
$custom-light: #8b8fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4d63cb",
  "rgb": {
    "r": 77,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 229.524,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.53819,
    "c": 0.16242,
    "h": 271
  },
  "luminance": 0.14813
}

Semantic roles & 50–950 ramp

primary

#4D63CB

secondary

#D4CB9F

accent

#C44ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4D63CB

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

Preview Lab → · Contrast checker → · Palette generator →