#28509A#28509A

#28509A is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.4% C 0.129 H 261.4°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#28509A
RGB	rgb(40, 80, 154)
HSL	hsl(219, 59%, 38%)
HSV	hsv(219, 74%, 60%)
CMYK	cmyk(74%, 48.1%, 0%, 39.6%)
CIE-LAB	lab(35.04, 12.63, -44.56)
CIE-LCH	lch(35.04, 46.31, 285.82°)
OKLab	oklab(44.42% -0.0193 -0.1278)
OKLCH	oklch(44.42% 0.129 261.4)
XYZ	xyz(9.5744, 8.5205, 31.7056)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28509A #9A7228

analogous

#28899A #28509A #39289A

triadic

#28509A #9A2850 #509A28

tetradic

#28509A #9A2889 #9A7228 #289A39

square

#28509A #9A2889 #9A7228 #289A39

split-complementary

#28509A #9A3928 #899A28

monochromatic

#0F1E39 #1B3769 #28509A #3569CA #658DD7

Accessibility & contrast

On white

7.77

#28509A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#28509A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28509A

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28509A	#FFFFFF	#000000	##FFFFFF
##28509A	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28589D

Deuteranopia (green-blind)

#0A4E99

Tritanopia (blue-blind)

#00616D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #28509a;
/* rgb */ color: rgb(40, 80, 154);
/* oklch */ color: oklch(44.4% 0.129 261.4);

Tailwind

colors: {
  custom: {
    50: '#7280b8',
    500: '#28509a',
    950: '#000000',
  },
}

SCSS

$custom: #28509a;
$custom-light: #7280b8;
$custom-dark: #000000;

JSON

{
  "hex": "#28509a",
  "rgb": {
    "r": 40,
    "g": 80,
    "b": 154
  },
  "hsl": {
    "h": 218.947,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.44418,
    "c": 0.12925,
    "h": 261.4
  },
  "luminance": 0.08522
}

Semantic roles & 50–950 ramp

primary

#28509A

secondary

#BD9D61

accent

#AB46E2

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #28509A

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

Preview Lab → · Contrast checker → · Palette generator →