#28478F#28478F

#28478F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.6% C 0.125 H 264.2°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#28478F
RGB	rgb(40, 71, 143)
HSL	hsl(222, 56%, 36%)
HSV	hsv(222, 72%, 56%)
CMYK	cmyk(72%, 50.3%, 0%, 43.9%)
CIE-LAB	lab(31.67, 14.42, -43.30)
CIE-LCH	lch(31.67, 45.64, 288.42°)
OKLab	oklab(41.6% -0.0127 -0.1243)
OKLCH	oklch(41.6% 0.125 264.2)
XYZ	xyz(8.0845, 6.9399, 26.8948)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28478F #8F7028

analogous

#287A8F #28478F #3C288F

triadic

#28478F #8F2847 #478F28

tetradic

#28478F #8F287A #8F7028 #288F3C

square

#28478F #8F287A #8F7028 #288F3C

split-complementary

#28478F #8F3C28 #7A8F28

monochromatic

#0D182F #1B2F5F #28478F #355FBF #5F82D2

Accessibility & contrast

On white

8.79

#28478F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#28478F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28478F

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28478F	#FFFFFF	#000000	##FFFFFF
##28478F	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5092

Deuteranopia (green-blind)

#00468E

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #28478f;
/* rgb */ color: rgb(40, 71, 143);
/* oklch */ color: oklch(41.6% 0.125 264.2);

Tailwind

colors: {
  custom: {
    50: '#7079b0',
    500: '#28478f',
    950: '#000000',
  },
}

SCSS

$custom: #28478f;
$custom-light: #7079b0;
$custom-dark: #000000;

JSON

{
  "hex": "#28478f",
  "rgb": {
    "r": 40,
    "g": 71,
    "b": 143
  },
  "hsl": {
    "h": 221.942,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41595,
    "c": 0.12491,
    "h": 264.2
  },
  "luminance": 0.06941
}

Semantic roles & 50–950 ramp

primary

#28478F

secondary

#B89C5B

accent

#B248E0

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #28478F

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

Preview Lab → · Contrast checker → · Palette generator →