#28366D#28366D

#28366D is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.097 H 270.1°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#28366D
RGB	rgb(40, 54, 109)
HSL	hsl(228, 46%, 29%)
HSV	hsv(228, 63%, 43%)
CMYK	cmyk(63.3%, 50.5%, 0%, 57.3%)
CIE-LAB	lab(24.30, 13.06, -33.84)
CIE-LCH	lch(24.30, 36.27, 291.10°)
OKLab	oklab(35.22% 0.0001 -0.0967)
OKLCH	oklch(35.22% 0.097 270.1)
XYZ	xyz(4.9536, 4.1932, 15.0134)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28366D #6D5F28

analogous

#28596D #28366D #3D286D

triadic

#28366D #6D2836 #366D28

tetradic

#28366D #6D2859 #6D5F28 #286D3D

square

#28366D #6D2859 #6D5F28 #286D3D

split-complementary

#28366D #6D3D28 #596D28

monochromatic

#080B16 #182040 #28366D #384C9A #5067BF

Accessibility & contrast

On white

11.42

#28366D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#28366D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28366D

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28366D	#FFFFFF	#000000	##FFFFFF
##28366D	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3D6F

Deuteranopia (green-blind)

#0F376C

Tritanopia (blue-blind)

#00424C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #28366d;
/* rgb */ color: rgb(40, 54, 109);
/* oklch */ color: oklch(35.2% 0.097 270.1);

Tailwind

colors: {
  custom: {
    50: '#696c97',
    500: '#28366d',
    950: '#000000',
  },
}

SCSS

$custom: #28366d;
$custom-light: #696c97;
$custom-dark: #000000;

JSON

{
  "hex": "#28366d",
  "rgb": {
    "r": 40,
    "g": 54,
    "b": 109
  },
  "hsl": {
    "h": 227.826,
    "s": 46.309,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35222,
    "c": 0.09671,
    "h": 270.1
  },
  "luminance": 0.04194
}

Semantic roles & 50–950 ramp

primary

#28366D

secondary

#9F9051

accent

#BB52D6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07070D

muted

#7A7A7E

Preview Lab

Preview with #28366D

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

Preview Lab → · Contrast checker → · Palette generator →