#28589E#28589E

#28589E is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.5% C 0.125 H 258.1°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#28589E
RGB	rgb(40, 88, 158)
HSL	hsl(216, 60%, 39%)
HSV	hsv(216, 75%, 62%)
CMYK	cmyk(74.7%, 44.3%, 0%, 38%)
CIE-LAB	lab(37.66, 8.88, -42.77)
CIE-LCH	lch(37.66, 43.68, 281.74°)
OKLab	oklab(46.52% -0.0258 -0.1224)
OKLCH	oklch(46.52% 0.125 258.1)
XYZ	xyz(10.5341, 9.8980, 33.6965)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28589E #9E6E28

analogous

#28939E #28589E #33289E

triadic

#28589E #9E2858 #589E28

tetradic

#28589E #9E2893 #9E6E28 #289E33

square

#28589E #9E2893 #9E6E28 #289E33

split-complementary

#28589E #9E3328 #939E28

monochromatic

#0F223C #1C3D6D #28589E #3774CC #6896D9

Accessibility & contrast

On white

7.05

#28589E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#28589E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28589E

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28589E	#FFFFFF	#000000	##FFFFFF
##28589E	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355EA1

Deuteranopia (green-blind)

#1F549D

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #28589e;
/* rgb */ color: rgb(40, 88, 158);
/* oklch */ color: oklch(46.5% 0.125 258.1);

Tailwind

colors: {
  custom: {
    50: '#7286bb',
    500: '#28589e',
    950: '#000000',
  },
}

SCSS

$custom: #28589e;
$custom-light: #7286bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28589e",
  "rgb": {
    "r": 40,
    "g": 88,
    "b": 158
  },
  "hsl": {
    "h": 215.593,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.46515,
    "c": 0.12509,
    "h": 258.1
  },
  "luminance": 0.09899
}

Semantic roles & 50–950 ramp

primary

#28589E

secondary

#BF9963

accent

#A345E3

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #28589E

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

Preview Lab → · Contrast checker → · Palette generator →