#3B28B1#3B28B1

#3B28B1 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.202 H 278.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#3B28B1
RGB	rgb(59, 40, 177)
HSL	hsl(248, 63%, 43%)
HSV	hsv(248, 77%, 69%)
CMYK	cmyk(66.7%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(28.43, 48.35, -69.11)
CIE-LCH	lch(28.43, 84.35, 304.98°)
OKLab	oklab(40.44% 0.0303 -0.1996)
OKLCH	oklch(40.44% 0.202 278.6)
XYZ	xyz(10.4957, 5.6208, 42.1183)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B28B1 #9EB128

analogous

#285AB1 #3B28B1 #7F28B1

triadic

#3B28B1 #B13B28 #28B13B

tetradic

#3B28B1 #B1285A #9EB128 #28B17F

square

#3B28B1 #B1285A #9EB128 #28B17F

split-complementary

#3B28B1 #B17F28 #5AB128

monochromatic

#1A114D #2A1D7F #3B28B1 #5642D4 #8374E0

Accessibility & contrast

On white

9.89

#3B28B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#3B28B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B28B1

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B28B1	#FFFFFF	#000000	##FFFFFF
##3B28B1	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003DAF

Tritanopia (blue-blind)

#00506B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3b28b1;
/* rgb */ color: rgb(59, 40, 177);
/* oklch */ color: oklch(40.4% 0.202 278.6);

Tailwind

colors: {
  custom: {
    50: '#8165ca',
    500: '#3b28b1',
    950: '#000000',
  },
}

SCSS

$custom: #3b28b1;
$custom-light: #8165ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3b28b1",
  "rgb": {
    "r": 59,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 248.321,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40439,
    "c": 0.20189,
    "h": 278.6
  },
  "luminance": 0.05622
}

Semantic roles & 50–950 ramp

primary

#3B28B1

secondary

#BBC76E

accent

#E642CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3B28B1

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

Preview Lab → · Contrast checker → · Palette generator →