#2821C2#2821C2

#2821C2 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 40.3% C 0.232 H 271.0°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#2821C2
RGB	rgb(40, 33, 194)
HSL	hsl(243, 71%, 45%)
HSV	hsv(243, 83%, 76%)
CMYK	cmyk(79.4%, 83%, 0%, 23.9%)
CIE-LAB	lab(27.93, 55.42, -80.07)
CIE-LCH	lch(27.93, 97.38, 304.69°)
OKLab	oklab(40.32% 0.0041 -0.2317)
OKLCH	oklch(40.32% 0.232 271)
XYZ	xyz(11.1532, 5.4326, 51.4893)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2821C2 #BBC221

analogous

#216AC2 #2821C2 #7921C2

triadic

#2821C2 #C22821 #21C228

tetradic

#2821C2 #C2216A #BBC221 #21C279

square

#2821C2 #C2216A #BBC221 #21C279

split-complementary

#2821C2 #C27921 #6AC221

monochromatic

#120F59 #1D188E #2821C2 #4841DF #7B76E8

Accessibility & contrast

On white

10.06

#2821C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2821C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2821C2

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2821C2	#FFFFFF	#000000	##FFFFFF
##2821C2	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AC6

Deuteranopia (green-blind)

#003ABF

Tritanopia (blue-blind)

#005674

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2821c2;
/* rgb */ color: rgb(40, 33, 194);
/* oklch */ color: oklch(40.3% 0.232 271.0);

Tailwind

colors: {
  custom: {
    50: '#7f62d6',
    500: '#2821c2',
    950: '#000000',
  },
}

SCSS

$custom: #2821c2;
$custom-light: #7f62d6;
$custom-dark: #000000;

JSON

{
  "hex": "#2821c2",
  "rgb": {
    "r": 40,
    "g": 33,
    "b": 194
  },
  "hsl": {
    "h": 242.609,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.40316,
    "c": 0.23175,
    "h": 271
  },
  "luminance": 0.05434
}

Semantic roles & 50–950 ramp

primary

#2821C2

secondary

#CBCF70

accent

#EE3AE6

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0515

muted

#7D7A83

Preview Lab

Preview with #2821C2

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

Preview Lab → · Contrast checker → · Palette generator →