#3A37BE#3A37BE

#3A37BE is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.8% C 0.203 H 275.0°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#3A37BE
RGB	rgb(58, 55, 190)
HSL	hsl(241, 55%, 48%)
HSV	hsv(241, 71%, 75%)
CMYK	cmyk(69.5%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(32.59, 44.18, -69.98)
CIE-LCH	lch(32.59, 82.76, 302.26°)
OKLab	oklab(43.75% 0.0176 -0.2023)
OKLCH	oklch(43.75% 0.203 275)
XYZ	xyz(12.4023, 7.3485, 49.4700)
Luminance	0.0735 (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

#3A37BE #BBBE37

analogous

#3778BE #3A37BE #7D37BE

triadic

#3A37BE #BE3A37 #37BE3A

tetradic

#3A37BE #BE3778 #BBBE37 #37BE7D

square

#3A37BE #BE3778 #BBBE37 #37BE7D

split-complementary

#3A37BE #BE7D37 #78BE37

monochromatic

#1D1C5F #2C298F #3A37BE #6361D1 #9290DF

Accessibility & contrast

On white

8.50

#3A37BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3A37BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37BE

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37BE	#FFFFFF	#000000	##FFFFFF
##3A37BE	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C2

Deuteranopia (green-blind)

#0046BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3a37be;
/* rgb */ color: rgb(58, 55, 190);
/* oklch */ color: oklch(43.8% 0.203 275.0);

Tailwind

colors: {
  custom: {
    50: '#836fd3',
    500: '#3a37be',
    950: '#000000',
  },
}

SCSS

$custom: #3a37be;
$custom-light: #836fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37be",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 241.333,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.43754,
    "c": 0.20304,
    "h": 275
  },
  "luminance": 0.0735
}

Semantic roles & 50–950 ramp

primary

#3A37BE

secondary

#C8CA87

accent

#DE49DB

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3A37BE

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

Preview Lab → · Contrast checker → · Palette generator →