#4C51BC#4C51BC

#4C51BC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.2% C 0.165 H 276.4°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#4C51BC
RGB	rgb(76, 81, 188)
HSL	hsl(237, 46%, 52%)
HSV	hsv(237, 60%, 74%)
CMYK	cmyk(59.6%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(39.67, 30.24, -57.19)
CIE-LCH	lch(39.67, 64.70, 297.87°)
OKLab	oklab(49.19% 0.0186 -0.1642)
OKLCH	oklch(49.19% 0.165 276.4)
XYZ	xyz(14.9971, 11.0511, 48.9100)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51BC #BCB74C

analogous

#4C89BC #4C51BC #7F4CBC

triadic

#4C51BC #BC4C51 #51BC4C

tetradic

#4C51BC #BC4C89 #BCB74C #4CBC7F

square

#4C51BC #BC4C89 #BCB74C #4CBC7F

split-complementary

#4C51BC #BC7F4C #89BC4C

monochromatic

#272967 #373B94 #4C51BC #797CCD #A5A8DD

Accessibility & contrast

On white

6.54

#4C51BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#4C51BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51BC

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51BC	#FFFFFF	#000000	##FFFFFF
##4C51BC	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4c51bc;
/* rgb */ color: rgb(76, 81, 188);
/* oklch */ color: oklch(49.2% 0.165 276.4);

Tailwind

colors: {
  custom: {
    50: '#8982d1',
    500: '#4c51bc',
    950: '#000000',
  },
}

SCSS

$custom: #4c51bc;
$custom-light: #8982d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51bc",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 237.321,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49192,
    "c": 0.16521,
    "h": 276.4
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary

#4C51BC

secondary

#CAC899

accent

#CF53D5

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4C51BC

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

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