#28229B#28229B

#28229B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.9% C 0.185 H 274.0°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#28229B
RGB	rgb(40, 34, 155)
HSL	hsl(243, 64%, 37%)
HSV	hsv(243, 78%, 61%)
CMYK	cmyk(74.2%, 78.1%, 0%, 39.2%)
CIE-LAB	lab(23.54, 42.69, -63.93)
CIE-LCH	lch(23.54, 76.88, 303.73°)
OKLab	oklab(35.94% 0.0128 -0.1849)
OKLCH	oklch(35.94% 0.185 274)
XYZ	xyz(7.3615, 3.9610, 31.3806)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28229B #959B22

analogous

#22599B #28229B #65229B

triadic

#28229B #9B2822 #229B28

tetradic

#28229B #9B2259 #959B22 #229B65

square

#28229B #9B2259 #959B22 #229B65

split-complementary

#28229B #9B6522 #599B22

monochromatic

#0E0C37 #1B1769 #28229B #352DCD #625CDB

Accessibility & contrast

On white

11.72

#28229B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#28229B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28229B

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28229B	#FFFFFF	#000000	##FFFFFF
##28229B	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9E

Deuteranopia (green-blind)

#003299

Tritanopia (blue-blind)

#00465E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #28229b;
/* rgb */ color: rgb(40, 34, 155);
/* oklch */ color: oklch(35.9% 0.185 274.0);

Tailwind

colors: {
  custom: {
    50: '#7560ba',
    500: '#28229b',
    950: '#000000',
  },
}

SCSS

$custom: #28229b;
$custom-light: #7560ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28229b",
  "rgb": {
    "r": 40,
    "g": 34,
    "b": 155
  },
  "hsl": {
    "h": 242.975,
    "s": 64.021,
    "l": 37.059
  },
  "oklch": {
    "l": 0.35939,
    "c": 0.18538,
    "h": 274
  },
  "luminance": 0.03962
}

Semantic roles & 50–950 ramp

primary

#28229B

secondary

#BBC059

accent

#E741DF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #28229B

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

Preview Lab → · Contrast checker → · Palette generator →