#28236B#28236B

#28236B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.1% C 0.121 H 279.8°. Best body text is #FFFFFF at 13.61:1 contrast (WCAG AA passes).

Color values

HEX	#28236B
RGB	rgb(40, 35, 107)
HSL	hsl(244, 51%, 28%)
HSV	hsv(244, 67%, 42%)
CMYK	cmyk(62.6%, 67.3%, 0%, 58%)
CIE-LAB	lab(18.86, 25.50, -41.35)
CIE-LCH	lch(18.86, 48.58, 301.67°)
OKLab	oklab(31.12% 0.0206 -0.119)
OKLCH	oklch(31.12% 0.121 279.8)
XYZ	xyz(4.1291, 2.7144, 14.2134)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28236B #666B23

analogous

#23426B #28236B #4C236B

triadic

#28236B #6B2823 #236B28

tetradic

#28236B #6B2342 #666B23 #236B4C

square

#28236B #6B2342 #666B23 #236B4C

split-complementary

#28236B #6B4C23 #426B23

monochromatic

#090817 #17143D #28236B #393299 #4F46C2

Accessibility & contrast

On white

13.61

#28236B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#28236B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28236B

13.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28236B	#FFFFFF	#000000	##FFFFFF
##28236B	1.00	13.61	1.54	13.61
#FFFFFF	13.61	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316D

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#003543

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #28236b;
/* rgb */ color: rgb(40, 35, 107);
/* oklch */ color: oklch(31.1% 0.121 279.8);

Tailwind

colors: {
  custom: {
    50: '#6a5e96',
    500: '#28236b',
    950: '#000000',
  },
}

SCSS

$custom: #28236b;
$custom-light: #6a5e96;
$custom-dark: #000000;

JSON

{
  "hex": "#28236b",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 107
  },
  "hsl": {
    "h": 244.167,
    "s": 50.704,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31116,
    "c": 0.12076,
    "h": 279.8
  },
  "luminance": 0.02715
}

Semantic roles & 50–950 ramp

primary

#28236B

secondary

#999E4B

accent

#DA4ED0

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040D

muted

#7A797E

Preview Lab

Preview with #28236B

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

Preview Lab → · Contrast checker → · Palette generator →