#3621BB#3621BB

#3621BB is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.4% C 0.220 H 276.2°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#3621BB
RGB	rgb(54, 33, 187)
HSL	hsl(248, 70%, 43%)
HSV	hsv(248, 82%, 73%)
CMYK	cmyk(71.1%, 82.4%, 0%, 26.7%)
CIE-LAB	lab(28.00, 54.23, -75.79)
CIE-LCH	lch(28.00, 93.19, 305.58°)
OKLab	oklab(40.36% 0.0237 -0.219)
OKLCH	oklch(40.36% 0.22 276.2)
XYZ	xyz(11.0319, 5.4588, 47.4763)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3621BB #A6BB21

analogous

#2159BB #3621BB #8321BB

triadic

#3621BB #BB3621 #21BB36

tetradic

#3621BB #BB2159 #A6BB21 #21BB83

square

#3621BB #BB2159 #A6BB21 #21BB83

split-complementary

#3621BB #BB8321 #59BB21

monochromatic

#180F53 #271887 #3621BB #523DDD #8171E6

Accessibility & contrast

On white

10.04

#3621BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3621BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3621BB

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3621BB	#FFFFFF	#000000	##FFFFFF
##3621BB	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#003BB8

Tritanopia (blue-blind)

#005270

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3621bb;
/* rgb */ color: rgb(54, 33, 187);
/* oklch */ color: oklch(40.4% 0.220 276.2);

Tailwind

colors: {
  custom: {
    50: '#8262d1',
    500: '#3621bb',
    950: '#000000',
  },
}

SCSS

$custom: #3621bb;
$custom-light: #8262d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3621bb",
  "rgb": {
    "r": 54,
    "g": 33,
    "b": 187
  },
  "hsl": {
    "h": 248.182,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40364,
    "c": 0.22033,
    "h": 276.2
  },
  "luminance": 0.0546
}

Semantic roles & 50–950 ramp

primary

#3621BB

secondary

#BFCC6B

accent

#ED3BD5

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #3621BB

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

Preview Lab → · Contrast checker → · Palette generator →