#28337E#28337E

#28337E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.127 H 272.1°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#28337E
RGB	rgb(40, 51, 126)
HSL	hsl(232, 52%, 33%)
HSV	hsv(232, 68%, 49%)
CMYK	cmyk(68.3%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(24.72, 21.61, -43.98)
CIE-LCH	lch(24.72, 49.01, 296.17°)
OKLab	oklab(35.94% 0.0046 -0.1266)
OKLCH	oklch(35.94% 0.127 272.1)
XYZ	xyz(5.8235, 4.3246, 20.2625)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28337E #7E7328

analogous

#285E7E #28337E #48287E

triadic

#28337E #7E2833 #337E28

tetradic

#28337E #7E285E #7E7328 #287E48

square

#28337E #7E285E #7E7328 #287E48

split-complementary

#28337E #7E4828 #5E7E28

monochromatic

#0B0D21 #192050 #28337E #3746AC #5765CA

Accessibility & contrast

On white

11.26

#28337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#28337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28337E

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28337E	#FFFFFF	#000000	##FFFFFF
##28337E	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F81

Deuteranopia (green-blind)

#00377D

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #28337e;
/* rgb */ color: rgb(40, 51, 126);
/* oklch */ color: oklch(35.9% 0.127 272.1);

Tailwind

colors: {
  custom: {
    50: '#6d6aa4',
    500: '#28337e',
    950: '#000000',
  },
}

SCSS

$custom: #28337e;
$custom-light: #6d6aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#28337e",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 232.326,
    "s": 51.807,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35942,
    "c": 0.12666,
    "h": 272.1
  },
  "luminance": 0.04325
}

Semantic roles & 50–950 ramp

primary

#28337E

secondary

#AFA353

accent

#C94DDB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #28337E

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

Preview Lab → · Contrast checker → · Palette generator →