#3A37BA#3A37BA

#3A37BA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.4% C 0.198 H 275.3°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3A37BA
RGB	rgb(58, 55, 186)
HSL	hsl(241, 54%, 47%)
HSV	hsv(241, 70%, 73%)
CMYK	cmyk(68.8%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(32.20, 42.85, -68.25)
CIE-LCH	lch(32.20, 80.59, 302.12°)
OKLab	oklab(43.36% 0.0183 -0.1972)
OKLCH	oklch(43.36% 0.198 275.3)
XYZ	xyz(11.9711, 7.1760, 47.1991)
Luminance	0.0718 (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

#3A37BA #B7BA37

analogous

#3776BA #3A37BA #7C37BA

triadic

#3A37BA #BA3A37 #37BA3A

tetradic

#3A37BA #BA3776 #B7BA37 #37BA7C

square

#3A37BA #BA3776 #B7BA37 #37BA7C

split-complementary

#3A37BA #BA7C37 #76BA37

monochromatic

#1D1B5C #2B298B #3A37BA #615FD0 #908EDE

Accessibility & contrast

On white

8.62

#3A37BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3A37BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37BA

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37BA	#FFFFFF	#000000	##FFFFFF
##3A37BA	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BE

Deuteranopia (green-blind)

#0046B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a37ba;
/* rgb */ color: rgb(58, 55, 186);
/* oklch */ color: oklch(43.4% 0.198 275.3);

Tailwind

colors: {
  custom: {
    50: '#826fd0',
    500: '#3a37ba',
    950: '#000000',
  },
}

SCSS

$custom: #3a37ba;
$custom-light: #826fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37ba",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 241.374,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43363,
    "c": 0.19806,
    "h": 275.3
  },
  "luminance": 0.07177
}

Semantic roles & 50–950 ramp

primary

#3A37BA

secondary

#C7C885

accent

#DE4ADA

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3A37BA

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

Preview Lab → · Contrast checker → · Palette generator →