#4A51CC#4A51CC

#4A51CC is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.3% C 0.187 H 274.9°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4A51CC
RGB	rgb(74, 81, 204)
HSL	hsl(237, 56%, 55%)
HSV	hsv(237, 64%, 80%)
CMYK	cmyk(63.7%, 60.3%, 0%, 20%)
CIE-LAB	lab(40.73, 35.29, -64.77)
CIE-LCH	lch(40.73, 73.76, 298.59°)
OKLab	oklab(50.33% 0.0161 -0.1865)
OKLCH	oklch(50.33% 0.187 274.9)
XYZ	xyz(16.6620, 11.6989, 58.4951)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A51CC #CCC54A

analogous

#4A92CC #4A51CC #844ACC

triadic

#4A51CC #CC4A51 #51CC4A

tetradic

#4A51CC #CC4A92 #CCC54A #4ACC84

square

#4A51CC #CC4A92 #CCC54A #4ACC84

split-complementary

#4A51CC #CC844A #92CC4A

monochromatic

#222779 #3036A9 #4A51CC #7A7FD9 #A9ADE7

Accessibility & contrast

On white

6.29

#4A51CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4A51CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A51CC

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A51CC	#FFFFFF	#000000	##FFFFFF
##4A51CC	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D0

Deuteranopia (green-blind)

#005ACA

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4a51cc;
/* rgb */ color: rgb(74, 81, 204);
/* oklch */ color: oklch(50.3% 0.187 274.9);

Tailwind

colors: {
  custom: {
    50: '#8a82dc',
    500: '#4a51cc',
    950: '#000000',
  },
}

SCSS

$custom: #4a51cc;
$custom-light: #8a82dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4a51cc",
  "rgb": {
    "r": 74,
    "g": 81,
    "b": 204
  },
  "hsl": {
    "h": 236.769,
    "s": 56.034,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50325,
    "c": 0.1872,
    "h": 274.9
  },
  "luminance": 0.117
}

Semantic roles & 50–950 ramp

primary

#4A51CC

secondary

#D4D19D

accent

#D748DF

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4A51CC

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

Preview Lab → · Contrast checker → · Palette generator →