#28337A#28337A

#28337A is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.121 H 272.1°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#28337A
RGB	rgb(40, 51, 122)
HSL	hsl(232, 51%, 32%)
HSV	hsv(232, 67%, 48%)
CMYK	cmyk(67.2%, 58.2%, 0%, 52.2%)
CIE-LAB	lab(24.40, 20.10, -41.98)
CIE-LCH	lch(24.40, 46.54, 295.58°)
OKLab	oklab(35.6% 0.0045 -0.1207)
OKLCH	oklch(35.6% 0.121 272.1)
XYZ	xyz(5.5706, 4.2234, 18.9302)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28337A #7A6F28

analogous

#285C7A #28337A #46287A

triadic

#28337A #7A2833 #337A28

tetradic

#28337A #7A285C #7A6F28 #287A46

square

#28337A #7A285C #7A6F28 #287A46

split-complementary

#28337A #7A4628 #5C7A28

monochromatic

#0A0C1E #19204C #28337A #3746A8 #5564C7

Accessibility & contrast

On white

11.38

#28337A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#28337A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28337A

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28337A	#FFFFFF	#000000	##FFFFFF
##28337A	1.00	11.38	1.84	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7C

Deuteranopia (green-blind)

#003679

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #28337a;
/* rgb */ color: rgb(40, 51, 122);
/* oklch */ color: oklch(35.6% 0.121 272.1);

Tailwind

colors: {
  custom: {
    50: '#6c6aa1',
    500: '#28337a',
    950: '#000000',
  },
}

SCSS

$custom: #28337a;
$custom-light: #6c6aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#28337a",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 122
  },
  "hsl": {
    "h": 231.951,
    "s": 50.617,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35602,
    "c": 0.12076,
    "h": 272.1
  },
  "luminance": 0.04224
}

Semantic roles & 50–950 ramp

primary

#28337A

secondary

#ACA052

accent

#C74EDA

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #28337A

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

Preview Lab → · Contrast checker → · Palette generator →