#28306F#28306F

#28306F is a dark, moderate blue. Relative luminance 0.037; OKLCH L 34.1% C 0.108 H 273.7°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#28306F
RGB	rgb(40, 48, 111)
HSL	hsl(233, 47%, 30%)
HSV	hsv(233, 64%, 44%)
CMYK	cmyk(64%, 56.8%, 0%, 56.5%)
CIE-LAB	lab(22.70, 18.02, -37.71)
CIE-LCH	lch(22.70, 41.80, 295.55°)
OKLab	oklab(34.06% 0.0071 -0.1082)
OKLCH	oklch(34.06% 0.108 273.7)
XYZ	xyz(4.8003, 3.7123, 15.4994)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28306F #6F6728

analogous

#28546F #28306F #43286F

triadic

#28306F #6F2830 #306F28

tetradic

#28306F #6F2854 #6F6728 #286F43

square

#28306F #6F2854 #6F6728 #286F43

split-complementary

#28306F #6F4328 #546F28

monochromatic

#080A16 #181D42 #28306F #38439C #515EC0

Accessibility & contrast

On white

12.05

#28306F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#28306F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28306F

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28306F	#FFFFFF	#000000	##FFFFFF
##28306F	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063971

Deuteranopia (green-blind)

#00336E

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #28306f;
/* rgb */ color: rgb(40, 48, 111);
/* oklch */ color: oklch(34.1% 0.108 273.7);

Tailwind

colors: {
  custom: {
    50: '#6a6899',
    500: '#28306f',
    950: '#000000',
  },
}

SCSS

$custom: #28306f;
$custom-light: #6a6899;
$custom-dark: #000000;

JSON

{
  "hex": "#28306f",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 111
  },
  "hsl": {
    "h": 233.239,
    "s": 47.02,
    "l": 29.608
  },
  "oklch": {
    "l": 0.34058,
    "c": 0.10839,
    "h": 273.7
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#28306F

secondary

#A19851

accent

#C851D7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #28306F

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

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