#2B28B1#2B28B1

#2B28B1 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.4% C 0.206 H 272.6°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#2B28B1
RGB	rgb(43, 40, 177)
HSL	hsl(241, 63%, 43%)
HSV	hsv(241, 77%, 69%)
CMYK	cmyk(75.7%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(27.31, 46.88, -71.01)
CIE-LCH	lch(27.31, 85.09, 303.43°)
OKLab	oklab(39.36% 0.0093 -0.2055)
OKLCH	oklch(39.36% 0.206 272.6)
XYZ	xyz(9.6882, 5.2045, 42.0804)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B28B1 #AEB128

analogous

#2869B1 #2B28B1 #7028B1

triadic

#2B28B1 #B12B28 #28B12B

tetradic

#2B28B1 #B12869 #AEB128 #28B170

square

#2B28B1 #B12869 #AEB128 #28B170

split-complementary

#2B28B1 #B17028 #69B128

monochromatic

#13114D #1F1D7F #2B28B1 #4542D4 #7674E0

Accessibility & contrast

On white

10.29

#2B28B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2B28B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B28B1

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B28B1	#FFFFFF	#000000	##FFFFFF
##2B28B1	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B5

Deuteranopia (green-blind)

#003AAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b28b1;
/* rgb */ color: rgb(43, 40, 177);
/* oklch */ color: oklch(39.4% 0.206 272.6);

Tailwind

colors: {
  custom: {
    50: '#7b65ca',
    500: '#2b28b1',
    950: '#000000',
  },
}

SCSS

$custom: #2b28b1;
$custom-light: #7b65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b28b1",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 241.314,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39357,
    "c": 0.20572,
    "h": 272.6
  },
  "luminance": 0.05205
}

Semantic roles & 50–950 ramp

primary

#2B28B1

secondary

#C5C76E

accent

#E642E3

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2B28B1

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

Preview Lab → · Contrast checker → · Palette generator →