#4A51BB#4A51BB

#4A51BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.0% C 0.164 H 275.7°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#4A51BB
RGB	rgb(74, 81, 187)
HSL	hsl(236, 45%, 51%)
HSV	hsv(236, 60%, 73%)
CMYK	cmyk(60.4%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(39.46, 29.55, -56.95)
CIE-LCH	lch(39.46, 64.16, 297.42°)
OKLab	oklab(48.98% 0.0162 -0.1635)
OKLCH	oklch(48.98% 0.164 275.7)
XYZ	xyz(14.7332, 10.9274, 48.3369)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A51BB #BBB44A

analogous

#4A89BB #4A51BB #7B4ABB

triadic

#4A51BB #BB4A51 #51BB4A

tetradic

#4A51BB #BB4A89 #BBB44A #4ABB7B

square

#4A51BB #BB4A89 #BBB44A #4ABB7B

split-complementary

#4A51BB #BB7B4A #89BB4A

monochromatic

#262A65 #373C91 #4A51BB #767CCC #A3A7DC

Accessibility & contrast

On white

6.59

#4A51BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#4A51BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A51BB

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A51BB	#FFFFFF	#000000	##FFFFFF
##4A51BB	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4a51bb;
/* rgb */ color: rgb(74, 81, 187);
/* oklch */ color: oklch(49.0% 0.164 275.7);

Tailwind

colors: {
  custom: {
    50: '#8781d0',
    500: '#4a51bb',
    950: '#000000',
  },
}

SCSS

$custom: #4a51bb;
$custom-light: #8781d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4a51bb",
  "rgb": {
    "r": 74,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 236.283,
    "s": 45.382,
    "l": 51.176
  },
  "oklch": {
    "l": 0.48979,
    "c": 0.16432,
    "h": 275.7
  },
  "luminance": 0.10929
}

Semantic roles & 50–950 ramp

primary

#4A51BB

secondary

#C9C697

accent

#CD53D5

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4A51BB

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

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