#3A37AC#3A37AC

#3A37AC is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.0% C 0.180 H 276.4°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#3A37AC
RGB	rgb(58, 55, 172)
HSL	hsl(242, 52%, 45%)
HSV	hsv(242, 68%, 67%)
CMYK	cmyk(66.3%, 68%, 0%, 32.5%)
CIE-LAB	lab(30.90, 38.17, -62.07)
CIE-LCH	lch(30.90, 72.86, 301.59°)
OKLab	oklab(42.03% 0.0202 -0.1791)
OKLCH	oklch(42.03% 0.18 276.4)
XYZ	xyz(10.5551, 6.6096, 39.7413)
Luminance	0.0661 (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

#3A37AC #A9AC37

analogous

#376FAC #3A37AC #7437AC

triadic

#3A37AC #AC3A37 #37AC3A

tetradic

#3A37AC #AC376F #A9AC37 #37AC74

square

#3A37AC #AC376F #A9AC37 #37AC74

split-complementary

#3A37AC #AC7437 #6FAC37

monochromatic

#1B194F #2A287E #3A37AC #5A57C9 #8785D8

Accessibility & contrast

On white

9.04

#3A37AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3A37AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37AC

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37AC	#FFFFFF	#000000	##FFFFFF
##3A37AC	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3a37ac;
/* rgb */ color: rgb(58, 55, 172);
/* oklch */ color: oklch(42.0% 0.180 276.4);

Tailwind

colors: {
  custom: {
    50: '#7f6fc6',
    500: '#3a37ac',
    950: '#000000',
  },
}

SCSS

$custom: #3a37ac;
$custom-light: #7f6fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37ac",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 241.538,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42028,
    "c": 0.18027,
    "h": 276.4
  },
  "luminance": 0.0661
}

Semantic roles & 50–950 ramp

primary

#3A37AC

secondary

#C0C27D

accent

#DB4DD7

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3A37AC

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

Preview Lab → · Contrast checker → · Palette generator →