#2821BD#2821BD

#2821BD is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.7% C 0.226 H 271.3°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#2821BD
RGB	rgb(40, 33, 189)
HSL	hsl(243, 70%, 44%)
HSV	hsv(243, 83%, 74%)
CMYK	cmyk(78.8%, 82.5%, 0%, 25.9%)
CIE-LAB	lab(27.33, 53.91, -78.12)
CIE-LCH	lch(27.33, 94.92, 304.61°)
OKLab	oklab(39.73% 0.0053 -0.2261)
OKLCH	oklch(39.73% 0.226 271.3)
XYZ	xyz(10.6011, 5.2118, 48.5815)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2821BD #B6BD21

analogous

#2168BD #2821BD #7621BD

triadic

#2821BD #BD2821 #21BD28

tetradic

#2821BD #BD2168 #B6BD21 #21BD76

square

#2821BD #BD2168 #B6BD21 #21BD76

split-complementary

#2821BD #BD7621 #68BD21

monochromatic

#120F55 #1D1889 #2821BD #453EDD #7772E6

Accessibility & contrast

On white

10.28

#2821BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2821BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2821BD

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2821BD	#FFFFFF	#000000	##FFFFFF
##2821BD	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048C1

Deuteranopia (green-blind)

#0039BA

Tritanopia (blue-blind)

#005471

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2821bd;
/* rgb */ color: rgb(40, 33, 189);
/* oklch */ color: oklch(39.7% 0.226 271.3);

Tailwind

colors: {
  custom: {
    50: '#7e61d2',
    500: '#2821bd',
    950: '#000000',
  },
}

SCSS

$custom: #2821bd;
$custom-light: #7e61d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2821bd",
  "rgb": {
    "r": 40,
    "g": 33,
    "b": 189
  },
  "hsl": {
    "h": 242.692,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.39727,
    "c": 0.22613,
    "h": 271.3
  },
  "luminance": 0.05213
}

Semantic roles & 50–950 ramp

primary

#2821BD

secondary

#C9CD6D

accent

#ED3BE5

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2821BD

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

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