#2828B2#2828B2

#2828B2 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.3% C 0.208 H 271.6°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2828B2
RGB	rgb(40, 40, 178)
HSL	hsl(240, 63%, 43%)
HSV	hsv(240, 78%, 70%)
CMYK	cmyk(77.5%, 77.5%, 0%, 30.2%)
CIE-LAB	lab(27.25, 46.98, -71.72)
CIE-LCH	lch(27.25, 85.74, 303.23°)
OKLab	oklab(39.3% 0.0056 -0.2076)
OKLCH	oklch(39.3% 0.208 271.6)
XYZ	xyz(9.6670, 5.1820, 42.6016)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2828B2 #B2B228

analogous

#286DB2 #2828B2 #6D28B2

triadic

#2828B2 #B22828 #28B228

tetradic

#2828B2 #B2286D #B2B228 #28B26D

square

#2828B2 #B2286D #B2B228 #28B26D

split-complementary

#2828B2 #B26D28 #6DB228

monochromatic

#12124E #1D1D80 #2828B2 #4343D5 #7575E0

Accessibility & contrast

On white

10.31

#2828B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2828B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2828B2

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2828B2	#FFFFFF	#000000	##FFFFFF
##2828B2	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)

#0047B6

Deuteranopia (green-blind)

#0039B0

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2828b2;
/* rgb */ color: rgb(40, 40, 178);
/* oklch */ color: oklch(39.3% 0.208 271.6);

Tailwind

colors: {
  custom: {
    50: '#7a64ca',
    500: '#2828b2',
    950: '#000000',
  },
}

SCSS

$custom: #2828b2;
$custom-light: #7a64ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2828b2",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 178
  },
  "hsl": {
    "h": 240,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39299,
    "c": 0.2077,
    "h": 271.6
  },
  "luminance": 0.05183
}

Semantic roles & 50–950 ramp

primary

#2828B2

secondary

#C7C76F

accent

#E641E6

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2828B2

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

Preview Lab → · Contrast checker → · Palette generator →