#3628B1#3628B1

#3628B1 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.203 H 276.6°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#3628B1
RGB	rgb(54, 40, 177)
HSL	hsl(246, 63%, 43%)
HSV	hsv(246, 77%, 69%)
CMYK	cmyk(69.5%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(28.05, 47.85, -69.76)
CIE-LCH	lch(28.05, 84.60, 304.44°)
OKLab	oklab(40.07% 0.0234 -0.2016)
OKLCH	oklch(40.07% 0.203 276.6)
XYZ	xyz(10.2133, 5.4752, 42.1050)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3628B1 #A3B128

analogous

#285FB1 #3628B1 #7A28B1

triadic

#3628B1 #B13628 #28B136

tetradic

#3628B1 #B1285F #A3B128 #28B17A

square

#3628B1 #B1285F #A3B128 #28B17A

split-complementary

#3628B1 #B17A28 #5FB128

monochromatic

#18114D #271D7F #3628B1 #5142D4 #7F74E0

Accessibility & contrast

On white

10.02

#3628B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3628B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3628B1

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3628B1	#FFFFFF	#000000	##FFFFFF
##3628B1	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3628b1;
/* rgb */ color: rgb(54, 40, 177);
/* oklch */ color: oklch(40.1% 0.203 276.6);

Tailwind

colors: {
  custom: {
    50: '#7f65ca',
    500: '#3628b1',
    950: '#000000',
  },
}

SCSS

$custom: #3628b1;
$custom-light: #7f65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3628b1",
  "rgb": {
    "r": 54,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 246.131,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40069,
    "c": 0.20299,
    "h": 276.6
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#3628B1

secondary

#BEC76E

accent

#E642D5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3628B1

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

Preview Lab → · Contrast checker → · Palette generator →