#28478E#28478E

#28478E is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.5% C 0.123 H 264.0°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#28478E
RGB	rgb(40, 71, 142)
HSL	hsl(222, 56%, 36%)
HSV	hsv(222, 72%, 56%)
CMYK	cmyk(71.8%, 50%, 0%, 44.3%)
CIE-LAB	lab(31.60, 14.03, -42.80)
CIE-LCH	lch(31.60, 45.04, 288.15°)
OKLab	oklab(41.52% -0.0128 -0.1228)
OKLCH	oklch(41.52% 0.123 264)
XYZ	xyz(8.0091, 6.9098, 26.4976)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28478E #8E6F28

analogous

#287A8E #28478E #3C288E

triadic

#28478E #8E2847 #478E28

tetradic

#28478E #8E287A #8E6F28 #288E3C

square

#28478E #8E287A #8E6F28 #288E3C

split-complementary

#28478E #8E3C28 #7A8E28

monochromatic

#0D172F #1B2F5E #28478E #355FBE #5F82D2

Accessibility & contrast

On white

8.82

#28478E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#28478E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28478E

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28478E	#FFFFFF	#000000	##FFFFFF
##28478E	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204F91

Deuteranopia (green-blind)

#01468D

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #28478e;
/* rgb */ color: rgb(40, 71, 142);
/* oklch */ color: oklch(41.5% 0.123 264.0);

Tailwind

colors: {
  custom: {
    50: '#6f79af',
    500: '#28478e',
    950: '#000000',
  },
}

SCSS

$custom: #28478e;
$custom-light: #6f79af;
$custom-dark: #000000;

JSON

{
  "hex": "#28478e",
  "rgb": {
    "r": 40,
    "g": 71,
    "b": 142
  },
  "hsl": {
    "h": 221.765,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.4152,
    "c": 0.12345,
    "h": 264
  },
  "luminance": 0.06911
}

Semantic roles & 50–950 ramp

primary

#28478E

secondary

#B79B5B

accent

#B148DF

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #28478E

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

Preview Lab → · Contrast checker → · Palette generator →