#2828B0#2828B0

#2828B0 is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.1% C 0.205 H 271.7°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#2828B0
RGB	rgb(40, 40, 176)
HSL	hsl(240, 63%, 42%)
HSV	hsv(240, 77%, 69%)
CMYK	cmyk(77.3%, 77.3%, 0%, 31%)
CIE-LAB	lab(27.02, 46.33, -70.89)
CIE-LCH	lch(27.02, 84.68, 303.17°)
OKLab	oklab(39.08% 0.006 -0.2052)
OKLCH	oklch(39.08% 0.205 271.7)
XYZ	xyz(9.4677, 5.1023, 41.5517)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2828B0 #B0B028

analogous

#286CB0 #2828B0 #6C28B0

triadic

#2828B0 #B02828 #28B028

tetradic

#2828B0 #B0286C #B0B028 #28B06C

square

#2828B0 #B0286C #B0B028 #28B06C

split-complementary

#2828B0 #B06C28 #6CB028

monochromatic

#11114C #1D1D7E #2828B0 #4141D4 #7373DF

Accessibility & contrast

On white

10.39

#2828B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2828B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2828B0

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2828B0	#FFFFFF	#000000	##FFFFFF
##2828B0	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B4

Deuteranopia (green-blind)

#0039AE

Tritanopia (blue-blind)

#00516B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2828b0;
/* rgb */ color: rgb(40, 40, 176);
/* oklch */ color: oklch(39.1% 0.205 271.7);

Tailwind

colors: {
  custom: {
    50: '#7a64c9',
    500: '#2828b0',
    950: '#000000',
  },
}

SCSS

$custom: #2828b0;
$custom-light: #7a64c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2828b0",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 176
  },
  "hsl": {
    "h": 240,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.39077,
    "c": 0.20531,
    "h": 271.7
  },
  "luminance": 0.05103
}

Semantic roles & 50–950 ramp

primary

#2828B0

secondary

#C6C66D

accent

#E642E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2828B0

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

Preview Lab → · Contrast checker → · Palette generator →