#28509C#28509C

#28509C is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.6% C 0.132 H 261.7°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#28509C
RGB	rgb(40, 80, 156)
HSL	hsl(219, 59%, 38%)
HSV	hsv(219, 74%, 61%)
CMYK	cmyk(74.4%, 48.7%, 0%, 38.8%)
CIE-LAB	lab(35.18, 13.40, -45.55)
CIE-LCH	lch(35.18, 47.48, 286.40°)
OKLab	oklab(44.56% -0.019 -0.1307)
OKLCH	oklch(44.56% 0.132 261.7)
XYZ	xyz(9.7423, 8.5877, 32.5902)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28509C #9C7428

analogous

#288A9C #28509C #3A289C

triadic

#28509C #9C2850 #509C28

tetradic

#28509C #9C288A #9C7428 #289C3A

square

#28509C #9C288A #9C7428 #289C3A

split-complementary

#28509C #9C3A28 #8A9C28

monochromatic

#0F1E3B #1C376B #28509C #3669CB #678ED8

Accessibility & contrast

On white

7.73

#28509C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#28509C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28509C

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28509C	#FFFFFF	#000000	##FFFFFF
##28509C	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26589F

Deuteranopia (green-blind)

#034E9A

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28509c;
/* rgb */ color: rgb(40, 80, 156);
/* oklch */ color: oklch(44.6% 0.132 261.7);

Tailwind

colors: {
  custom: {
    50: '#7280ba',
    500: '#28509c',
    950: '#000000',
  },
}

SCSS

$custom: #28509c;
$custom-light: #7280ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28509c",
  "rgb": {
    "r": 40,
    "g": 80,
    "b": 156
  },
  "hsl": {
    "h": 219.31,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44563,
    "c": 0.13209,
    "h": 261.7
  },
  "luminance": 0.08589
}

Semantic roles & 50–950 ramp

primary

#28509C

secondary

#BE9E62

accent

#AC45E2

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #28509C

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

Preview Lab → · Contrast checker → · Palette generator →