#3A37AE#3A37AE

#3A37AE is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.183 H 276.3°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#3A37AE
RGB	rgb(58, 55, 174)
HSL	hsl(242, 52%, 45%)
HSV	hsv(242, 68%, 68%)
CMYK	cmyk(66.7%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(31.08, 38.85, -62.96)
CIE-LCH	lch(31.08, 73.98, 301.67°)
OKLab	oklab(42.22% 0.02 -0.1818)
OKLCH	oklch(42.22% 0.183 276.3)
XYZ	xyz(10.7486, 6.6870, 40.7605)
Luminance	0.0669 (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

#3A37AE #ABAE37

analogous

#376FAE #3A37AE #7637AE

triadic

#3A37AE #AE3A37 #37AE3A

tetradic

#3A37AE #AE376F #ABAE37 #37AE76

square

#3A37AE #AE376F #ABAE37 #37AE76

split-complementary

#3A37AE #AE7637 #6FAE37

monochromatic

#1B1A51 #2B287F #3A37AE #5B58CA #8986D9

Accessibility & contrast

On white

8.98

#3A37AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3A37AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37AE

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37AE	#FFFFFF	#000000	##FFFFFF
##3A37AE	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0044AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3a37ae;
/* rgb */ color: rgb(58, 55, 174);
/* oklch */ color: oklch(42.2% 0.183 276.3);

Tailwind

colors: {
  custom: {
    50: '#7f6fc7',
    500: '#3a37ae',
    950: '#000000',
  },
}

SCSS

$custom: #3a37ae;
$custom-light: #7f6fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37ae",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 241.513,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42216,
    "c": 0.18285,
    "h": 276.3
  },
  "luminance": 0.06688
}

Semantic roles & 50–950 ramp

primary

#3A37AE

secondary

#C1C37E

accent

#DB4CD8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3A37AE

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

Preview Lab → · Contrast checker → · Palette generator →