#4A37BB#4A37BB

#4A37BB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.6% C 0.196 H 281.5°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#4A37BB
RGB	rgb(74, 55, 187)
HSL	hsl(249, 55%, 47%)
HSV	hsv(249, 71%, 73%)
CMYK	cmyk(60.4%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(33.51, 45.24, -66.65)
CIE-LCH	lch(33.51, 80.56, 304.17°)
OKLab	oklab(44.64% 0.039 -0.1921)
OKLCH	oklch(44.64% 0.196 281.5)
XYZ	xyz(13.1571, 7.7752, 47.8115)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A37BB #A8BB37

analogous

#3766BB #4A37BB #8C37BB

triadic

#4A37BB #BB4A37 #37BB4A

tetradic

#4A37BB #BB3766 #A8BB37 #37BB8C

square

#4A37BB #BB3766 #A8BB37 #37BB8C

split-complementary

#4A37BB #BB8C37 #66BB37

monochromatic

#251B5C #37298C #4A37BB #6F5FD0 #9A8EDE

Accessibility & contrast

On white

8.22

#4A37BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4A37BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4A37BB

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A37BB	#FFFFFF	#000000	##FFFFFF
##4A37BB	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4a37bb;
/* rgb */ color: rgb(74, 55, 187);
/* oklch */ color: oklch(44.6% 0.196 281.5);

Tailwind

colors: {
  custom: {
    50: '#8970d1',
    500: '#4a37bb',
    950: '#000000',
  },
}

SCSS

$custom: #4a37bb;
$custom-light: #8970d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4a37bb",
  "rgb": {
    "r": 74,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 248.636,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44635,
    "c": 0.19602,
    "h": 281.5
  },
  "luminance": 0.07776
}

Semantic roles & 50–950 ramp

primary

#4A37BB

secondary

#BFC985

accent

#DE4AC9

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4A37BB

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

Preview Lab → · Contrast checker → · Palette generator →