#28366C#28366C

#28366C is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.095 H 270.0°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#28366C
RGB	rgb(40, 54, 108)
HSL	hsl(228, 46%, 29%)
HSV	hsv(228, 63%, 42%)
CMYK	cmyk(63%, 50%, 0%, 57.6%)
CIE-LAB	lab(24.23, 12.68, -33.31)
CIE-LCH	lch(24.23, 35.64, 290.84°)
OKLab	oklab(35.15% 0 -0.0951)
OKLCH	oklch(35.15% 0.095 270)
XYZ	xyz(4.9001, 4.1718, 14.7315)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28366C #6C5E28

analogous

#28586C #28366C #3C286C

triadic

#28366C #6C2836 #366C28

tetradic

#28366C #6C2858 #6C5E28 #286C3C

square

#28366C #6C2858 #6C5E28 #286C3C

split-complementary

#28366C #6C3C28 #586C28

monochromatic

#080B16 #17203F #28366C #394C99 #5067BE

Accessibility & contrast

On white

11.45

#28366C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#28366C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28366C

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28366C	#FFFFFF	#000000	##FFFFFF
##28366C	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3D6E

Deuteranopia (green-blind)

#10376B

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #28366c;
/* rgb */ color: rgb(40, 54, 108);
/* oklch */ color: oklch(35.1% 0.095 270.0);

Tailwind

colors: {
  custom: {
    50: '#696c96',
    500: '#28366c',
    950: '#000000',
  },
}

SCSS

$custom: #28366c;
$custom-light: #696c96;
$custom-dark: #000000;

JSON

{
  "hex": "#28366c",
  "rgb": {
    "r": 40,
    "g": 54,
    "b": 108
  },
  "hsl": {
    "h": 227.647,
    "s": 45.946,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35148,
    "c": 0.09514,
    "h": 270
  },
  "luminance": 0.04172
}

Semantic roles & 50–950 ramp

primary

#28366C

secondary

#9E8F51

accent

#BB52D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07070D

muted

#7A7A7E

Preview Lab

Preview with #28366C

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

Preview Lab → · Contrast checker → · Palette generator →