#4C51BE#4C51BE

#4C51BE is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.3% C 0.168 H 276.3°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4C51BE
RGB	rgb(76, 81, 190)
HSL	hsl(237, 47%, 52%)
HSV	hsv(237, 60%, 75%)
CMYK	cmyk(60%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(39.81, 30.91, -58.13)
CIE-LCH	lch(39.81, 65.84, 298.00°)
OKLab	oklab(49.35% 0.0186 -0.1669)
OKLCH	oklch(49.35% 0.168 276.3)
XYZ	xyz(15.2142, 11.1379, 50.0533)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C51BE #BEB94C

analogous

#4C8ABE #4C51BE #804CBE

triadic

#4C51BE #BE4C51 #51BE4C

tetradic

#4C51BE #BE4C8A #BEB94C #4CBE80

square

#4C51BE #BE4C8A #BEB94C #4CBE80

split-complementary

#4C51BE #BE804C #8ABE4C

monochromatic

#262969 #373B96 #4C51BE #797DCE #A6A8DF

Accessibility & contrast

On white

6.51

#4C51BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#4C51BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C51BE

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C51BE	#FFFFFF	#000000	##FFFFFF
##4C51BE	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C2

Deuteranopia (green-blind)

#0059BC

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4c51be;
/* rgb */ color: rgb(76, 81, 190);
/* oklch */ color: oklch(49.3% 0.168 276.3);

Tailwind

colors: {
  custom: {
    50: '#8982d2',
    500: '#4c51be',
    950: '#000000',
  },
}

SCSS

$custom: #4c51be;
$custom-light: #8982d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4c51be",
  "rgb": {
    "r": 76,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 237.368,
    "s": 46.721,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49346,
    "c": 0.16795,
    "h": 276.3
  },
  "luminance": 0.11139
}

Semantic roles & 50–950 ramp

primary

#4C51BE

secondary

#CCCA9A

accent

#D151D6

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0D0A14

muted

#7D7C83

Preview Lab

Preview with #4C51BE

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

Preview Lab → · Contrast checker → · Palette generator →