#3A37BC#3A37BC

#3A37BC is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.6% C 0.201 H 275.1°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3A37BC
RGB	rgb(58, 55, 188)
HSL	hsl(241, 55%, 48%)
HSV	hsv(241, 71%, 74%)
CMYK	cmyk(69.1%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(32.40, 43.52, -69.12)
CIE-LCH	lch(32.40, 81.68, 302.19°)
OKLab	oklab(43.56% 0.018 -0.1997)
OKLCH	oklch(43.56% 0.201 275.1)
XYZ	xyz(12.1852, 7.2616, 48.3267)
Luminance	0.0726 (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

#3A37BC #B9BC37

analogous

#3777BC #3A37BC #7C37BC

triadic

#3A37BC #BC3A37 #37BC3A

tetradic

#3A37BC #BC3777 #B9BC37 #37BC7C

square

#3A37BC #BC3777 #B9BC37 #37BC7C

split-complementary

#3A37BC #BC7C37 #77BC37

monochromatic

#1D1B5D #2B298D #3A37BC #6260D0 #918FDE

Accessibility & contrast

On white

8.56

#3A37BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3A37BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37BC

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37BC	#FFFFFF	#000000	##FFFFFF
##3A37BC	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a37bc;
/* rgb */ color: rgb(58, 55, 188);
/* oklch */ color: oklch(43.6% 0.201 275.1);

Tailwind

colors: {
  custom: {
    50: '#826fd1',
    500: '#3a37bc',
    950: '#000000',
  },
}

SCSS

$custom: #3a37bc;
$custom-light: #826fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37bc",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 241.353,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43558,
    "c": 0.20055,
    "h": 275.1
  },
  "luminance": 0.07263
}

Semantic roles & 50–950 ramp

primary

#3A37BC

secondary

#C7C986

accent

#DE4ADB

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3A37BC

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

Preview Lab → · Contrast checker → · Palette generator →