#2A28B1#2A28B1

#2A28B1 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.3% C 0.206 H 272.3°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2A28B1
RGB	rgb(42, 40, 177)
HSL	hsl(241, 63%, 43%)
HSV	hsv(241, 77%, 69%)
CMYK	cmyk(76.3%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(27.25, 46.81, -71.11)
CIE-LCH	lch(27.25, 85.13, 303.35°)
OKLab	oklab(39.3% 0.0081 -0.2058)
OKLCH	oklch(39.3% 0.206 272.3)
XYZ	xyz(9.6468, 5.1831, 42.0785)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28B1 #AFB128

analogous

#286AB1 #2A28B1 #6F28B1

triadic

#2A28B1 #B12A28 #28B12A

tetradic

#2A28B1 #B1286A #AFB128 #28B16F

square

#2A28B1 #B1286A #AFB128 #28B16F

split-complementary

#2A28B1 #B16F28 #6AB128

monochromatic

#12114D #1E1D7F #2A28B1 #4442D4 #7574E0

Accessibility & contrast

On white

10.31

#2A28B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2A28B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28B1

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28B1	#FFFFFF	#000000	##FFFFFF
##2A28B1	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B5

Deuteranopia (green-blind)

#0039AF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2a28b1;
/* rgb */ color: rgb(42, 40, 177);
/* oklch */ color: oklch(39.3% 0.206 272.3);

Tailwind

colors: {
  custom: {
    50: '#7b64ca',
    500: '#2a28b1',
    950: '#000000',
  },
}

SCSS

$custom: #2a28b1;
$custom-light: #7b64ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28b1",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 240.876,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.393,
    "c": 0.20598,
    "h": 272.3
  },
  "luminance": 0.05184
}

Semantic roles & 50–950 ramp

primary

#2A28B1

secondary

#C6C76E

accent

#E642E4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2A28B1

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

Preview Lab → · Contrast checker → · Palette generator →