#4C63BC#4C63BC

#4C63BC is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.7% C 0.142 H 270.1°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#4C63BC
RGB	rgb(76, 99, 188)
HSL	hsl(228, 46%, 52%)
HSV	hsv(228, 60%, 74%)
CMYK	cmyk(59.6%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(44.36, 18.84, -49.63)
CIE-LCH	lch(44.36, 53.08, 290.79°)
OKLab	oklab(52.73% 0.0002 -0.1417)
OKLCH	oklch(52.73% 0.142 270.1)
XYZ	xyz(16.5164, 14.0897, 49.4164)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C63BC #BCA54C

analogous

#4C9BBC #4C63BC #6D4CBC

triadic

#4C63BC #BC4C63 #63BC4C

tetradic

#4C63BC #BC4C9B #BCA54C #4CBC6D

square

#4C63BC #BC4C9B #BCA54C #4CBC6D

split-complementary

#4C63BC #BC6D4C #9BBC4C

monochromatic

#273467 #374A94 #4C63BC #798ACD #A5B1DD

Accessibility & contrast

On white

5.50

#4C63BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#4C63BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C63BC

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C63BC	#FFFFFF	#000000	##FFFFFF
##4C63BC	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBF

Deuteranopia (green-blind)

#2664BA

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4c63bc;
/* rgb */ color: rgb(76, 99, 188);
/* oklch */ color: oklch(52.7% 0.142 270.1);

Tailwind

colors: {
  custom: {
    50: '#888fd1',
    500: '#4c63bc',
    950: '#000000',
  },
}

SCSS

$custom: #4c63bc;
$custom-light: #888fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c63bc",
  "rgb": {
    "r": 76,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 227.679,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.52727,
    "c": 0.14172,
    "h": 270.1
  },
  "luminance": 0.14091
}

Semantic roles & 50–950 ramp

primary

#4C63BC

secondary

#CAC099

accent

#BA53D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4C63BC

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

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