#3E37B7#3E37B7

#3E37B7 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.193 H 277.1°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3E37B7
RGB	rgb(62, 55, 183)
HSL	hsl(243, 54%, 47%)
HSV	hsv(243, 70%, 72%)
CMYK	cmyk(66.1%, 69.9%, 0%, 28.2%)
CIE-LAB	lab(32.20, 42.35, -66.47)
CIE-LCH	lch(32.20, 78.82, 302.50°)
OKLab	oklab(43.35% 0.0238 -0.1919)
OKLCH	oklch(43.35% 0.193 277.1)
XYZ	xyz(11.8973, 7.1744, 45.5484)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.49

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E37B7 #B0B737

analogous

#3770B7 #3E37B7 #7E37B7

triadic

#3E37B7 #B73E37 #37B73E

tetradic

#3E37B7 #B73770 #B0B737 #37B77E

square

#3E37B7 #B73770 #B0B737 #37B77E

split-complementary

#3E37B7 #B77E37 #70B737

monochromatic

#1E1B59 #2E2988 #3E37B7 #635DCE #908CDC

Accessibility & contrast

On white

8.62

#3E37B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3E37B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E37B7

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E37B7	#FFFFFF	#000000	##FFFFFF
##3E37B7	1.00	8.62	2.43	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BB

Deuteranopia (green-blind)

#0046B5

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3e37b7;
/* rgb */ color: rgb(62, 55, 183);
/* oklch */ color: oklch(43.3% 0.193 277.1);

Tailwind

colors: {
  custom: {
    50: '#836fce',
    500: '#3e37b7',
    950: '#000000',
  },
}

SCSS

$custom: #3e37b7;
$custom-light: #836fce;
$custom-dark: #000000;

JSON

{
  "hex": "#3e37b7",
  "rgb": {
    "r": 62,
    "g": 55,
    "b": 183
  },
  "hsl": {
    "h": 243.281,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43347,
    "c": 0.19338,
    "h": 277.1
  },
  "luminance": 0.07175
}

Semantic roles & 50–950 ramp

primary

#3E37B7

secondary

#C3C783

accent

#DD4BD5

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3E37B7

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

Preview Lab → · Contrast checker → · Palette generator →