#28479B#28479B

#28479B is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.5% C 0.142 H 265.4°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#28479B
RGB	rgb(40, 71, 155)
HSL	hsl(224, 59%, 38%)
HSV	hsv(224, 74%, 61%)
CMYK	cmyk(74.2%, 54.2%, 0%, 39.2%)
CIE-LAB	lab(32.53, 19.07, -49.21)
CIE-LCH	lch(32.53, 52.78, 291.18°)
OKLab	oklab(42.53% -0.0113 -0.1417)
OKLCH	oklch(42.53% 0.142 265.4)
XYZ	xyz(9.0426, 7.3232, 31.9409)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28479B #9B7C28

analogous

#28809B #28479B #42289B

triadic

#28479B #9B2847 #479B28

tetradic

#28479B #9B2880 #9B7C28 #289B42

square

#28479B #9B2880 #9B7C28 #289B42

split-complementary

#28479B #9B4228 #809B28

monochromatic

#0F1A3A #1B316A #28479B #355ECB #6685D7

Accessibility & contrast

On white

8.52

#28479B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#28479B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28479B

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28479B	#FFFFFF	#000000	##FFFFFF
##28479B	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08529E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #28479b;
/* rgb */ color: rgb(40, 71, 155);
/* oklch */ color: oklch(42.5% 0.142 265.4);

Tailwind

colors: {
  custom: {
    50: '#7279b9',
    500: '#28479b',
    950: '#000000',
  },
}

SCSS

$custom: #28479b;
$custom-light: #7279b9;
$custom-dark: #000000;

JSON

{
  "hex": "#28479b",
  "rgb": {
    "r": 40,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 223.826,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.42525,
    "c": 0.14212,
    "h": 265.4
  },
  "luminance": 0.07324
}

Semantic roles & 50–950 ramp

primary

#28479B

secondary

#BDA561

accent

#B846E2

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #28479B

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

Preview Lab → · Contrast checker → · Palette generator →