#2C28B1#2C28B1

#2C28B1 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.4% C 0.205 H 272.9°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#2C28B1
RGB	rgb(44, 40, 177)
HSL	hsl(242, 63%, 43%)
HSV	hsv(242, 77%, 69%)
CMYK	cmyk(75.1%, 77.4%, 0%, 30.6%)
CIE-LAB	lab(27.37, 46.96, -70.91)
CIE-LCH	lch(27.37, 85.05, 303.52°)
OKLab	oklab(39.42% 0.0105 -0.2052)
OKLCH	oklch(39.42% 0.205 272.9)
XYZ	xyz(9.7307, 5.2264, 42.0824)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C28B1 #ADB128

analogous

#2868B1 #2C28B1 #7128B1

triadic

#2C28B1 #B12C28 #28B12C

tetradic

#2C28B1 #B12868 #ADB128 #28B171

square

#2C28B1 #B12868 #ADB128 #28B171

split-complementary

#2C28B1 #B17128 #68B128

monochromatic

#13114D #201D7F #2C28B1 #4642D4 #7774E0

Accessibility & contrast

On white

10.27

#2C28B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2C28B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C28B1

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C28B1	#FFFFFF	#000000	##FFFFFF
##2C28B1	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B5

Deuteranopia (green-blind)

#003AAF

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2c28b1;
/* rgb */ color: rgb(44, 40, 177);
/* oklch */ color: oklch(39.4% 0.205 272.9);

Tailwind

colors: {
  custom: {
    50: '#7c65ca',
    500: '#2c28b1',
    950: '#000000',
  },
}

SCSS

$custom: #2c28b1;
$custom-light: #7c65ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2c28b1",
  "rgb": {
    "r": 44,
    "g": 40,
    "b": 177
  },
  "hsl": {
    "h": 241.752,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.39416,
    "c": 0.20546,
    "h": 272.9
  },
  "luminance": 0.05227
}

Semantic roles & 50–950 ramp

primary

#2C28B1

secondary

#C4C76E

accent

#E642E1

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2C28B1

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

Preview Lab → · Contrast checker → · Palette generator →