#28489B#28489B

#28489B is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.141 H 265.0°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#28489B
RGB	rgb(40, 72, 155)
HSL	hsl(223, 59%, 38%)
HSV	hsv(223, 74%, 61%)
CMYK	cmyk(74.2%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(32.81, 18.39, -48.76)
CIE-LCH	lch(32.81, 52.11, 290.67°)
OKLab	oklab(42.74% -0.0122 -0.1403)
OKLCH	oklch(42.74% 0.141 265)
XYZ	xyz(9.1067, 7.4514, 31.9623)
Luminance	0.0745 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28489B #9B7B28

analogous

#28819B #28489B #41289B

triadic

#28489B #9B2848 #489B28

tetradic

#28489B #9B2881 #9B7B28 #289B41

square

#28489B #9B2881 #9B7B28 #289B41

split-complementary

#28489B #9B4128 #819B28

monochromatic

#0F1B3A #1B316A #28489B #355FCB #6686D7

Accessibility & contrast

On white

8.43

#28489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#28489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28489B

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28489B	#FFFFFF	#000000	##FFFFFF
##28489B	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E539E

Deuteranopia (green-blind)

#004899

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #28489b;
/* rgb */ color: rgb(40, 72, 155);
/* oklch */ color: oklch(42.7% 0.141 265.0);

Tailwind

colors: {
  custom: {
    50: '#727ab9',
    500: '#28489b',
    950: '#000000',
  },
}

SCSS

$custom: #28489b;
$custom-light: #727ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#28489b",
  "rgb": {
    "r": 40,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 223.304,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.42738,
    "c": 0.14084,
    "h": 265
  },
  "luminance": 0.07452
}

Semantic roles & 50–950 ramp

primary

#28489B

secondary

#BDA461

accent

#B746E2

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #28489B

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

Preview Lab → · Contrast checker → · Palette generator →