#28306D#28306D

#28306D is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.9% C 0.105 H 273.8°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#28306D
RGB	rgb(40, 48, 109)
HSL	hsl(233, 46%, 29%)
HSV	hsv(233, 63%, 43%)
CMYK	cmyk(63.3%, 56%, 0%, 57.3%)
CIE-LAB	lab(22.54, 17.27, -36.67)
CIE-LCH	lch(22.54, 40.53, 295.22°)
OKLab	oklab(33.89% 0.0069 -0.1051)
OKLCH	oklch(33.89% 0.105 273.8)
XYZ	xyz(4.6914, 3.6688, 14.9260)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28306D #6D6528

analogous

#28536D #28306D #43286D

triadic

#28306D #6D2830 #306D28

tetradic

#28306D #6D2853 #6D6528 #286D43

square

#28306D #6D2853 #6D6528 #286D43

split-complementary

#28306D #6D4328 #536D28

monochromatic

#080A16 #181C40 #28306D #38449A #505DBF

Accessibility & contrast

On white

12.11

#28306D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#28306D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28306D

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28306D	#FFFFFF	#000000	##FFFFFF
##28306D	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A396F

Deuteranopia (green-blind)

#00336C

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28306d;
/* rgb */ color: rgb(40, 48, 109);
/* oklch */ color: oklch(33.9% 0.105 273.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#28306d",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 109
  },
  "hsl": {
    "h": 233.043,
    "s": 46.309,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33895,
    "c": 0.10533,
    "h": 273.8
  },
  "luminance": 0.03669
}

Semantic roles & 50–950 ramp

primary

#28306D

secondary

#9F9651

accent

#C752D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #28306D

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

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