#28306E#28306E

#28306E is a dark, moderate blue. Relative luminance 0.037; OKLCH L 34.0% C 0.107 H 273.8°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#28306E
RGB	rgb(40, 48, 110)
HSL	hsl(233, 47%, 29%)
HSV	hsv(233, 64%, 43%)
CMYK	cmyk(63.6%, 56.4%, 0%, 56.9%)
CIE-LAB	lab(22.62, 17.65, -37.19)
CIE-LCH	lch(22.62, 41.16, 295.39°)
OKLab	oklab(33.98% 0.007 -0.1066)
OKLCH	oklch(33.98% 0.107 273.8)
XYZ	xyz(4.7456, 3.6904, 15.2111)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28306E #6E6628

analogous

#28536E #28306E #43286E

triadic

#28306E #6E2830 #306E28

tetradic

#28306E #6E2853 #6E6628 #286E43

square

#28306E #6E2853 #6E6628 #286E43

split-complementary

#28306E #6E4328 #536E28

monochromatic

#080A16 #181C41 #28306E #38449B #515DC0

Accessibility & contrast

On white

12.08

#28306E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#28306E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28306E

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28306E	#FFFFFF	#000000	##FFFFFF
##28306E	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083970

Deuteranopia (green-blind)

#00336D

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28306e;
/* rgb */ color: rgb(40, 48, 110);
/* oklch */ color: oklch(34.0% 0.107 273.8);

Tailwind

colors: {
  custom: {
    50: '#6a6898',
    500: '#28306e',
    950: '#000000',
  },
}

SCSS

$custom: #28306e;
$custom-light: #6a6898;
$custom-dark: #000000;

JSON

{
  "hex": "#28306e",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 110
  },
  "hsl": {
    "h": 233.143,
    "s": 46.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.33976,
    "c": 0.10686,
    "h": 273.8
  },
  "luminance": 0.03691
}

Semantic roles & 50–950 ramp

primary

#28306E

secondary

#A09751

accent

#C751D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #28306E

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

Preview Lab → · Contrast checker → · Palette generator →