#28306C#28306C

#28306C is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.8% C 0.104 H 273.8°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#28306C
RGB	rgb(40, 48, 108)
HSL	hsl(233, 46%, 29%)
HSV	hsv(233, 63%, 42%)
CMYK	cmyk(63%, 55.6%, 0%, 57.6%)
CIE-LAB	lab(22.47, 16.89, -36.14)
CIE-LCH	lch(22.47, 39.90, 295.05°)
OKLab	oklab(33.82% 0.0069 -0.1036)
OKLCH	oklch(33.82% 0.104 273.8)
XYZ	xyz(4.6379, 3.6474, 14.6441)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28306C #6C6428

analogous

#28526C #28306C #42286C

triadic

#28306C #6C2830 #306C28

tetradic

#28306C #6C2852 #6C6428 #286C42

square

#28306C #6C2852 #6C6428 #286C42

split-complementary

#28306C #6C4228 #526C28

monochromatic

#080A16 #171C3F #28306C #394499 #505DBE

Accessibility & contrast

On white

12.14

#28306C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#28306C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28306C

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28306C	#FFFFFF	#000000	##FFFFFF
##28306C	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C396E

Deuteranopia (green-blind)

#00336B

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28306c;
/* rgb */ color: rgb(40, 48, 108);
/* oklch */ color: oklch(33.8% 0.104 273.8);

Tailwind

colors: {
  custom: {
    50: '#696897',
    500: '#28306c',
    950: '#000000',
  },
}

SCSS

$custom: #28306c;
$custom-light: #696897;
$custom-dark: #000000;

JSON

{
  "hex": "#28306c",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 108
  },
  "hsl": {
    "h": 232.941,
    "s": 45.946,
    "l": 29.02
  },
  "oklch": {
    "l": 0.33815,
    "c": 0.10379,
    "h": 273.8
  },
  "luminance": 0.03648
}

Semantic roles & 50–950 ramp

primary

#28306C

secondary

#9E9551

accent

#C652D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #28306C

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

Preview Lab → · Contrast checker → · Palette generator →