#28509E#28509E

#28509E is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.7% C 0.135 H 262.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#28509E
RGB	rgb(40, 80, 158)
HSL	hsl(220, 60%, 39%)
HSV	hsv(220, 75%, 62%)
CMYK	cmyk(74.7%, 49.4%, 0%, 38%)
CIE-LAB	lab(35.31, 14.18, -46.53)
CIE-LCH	lch(35.31, 48.64, 286.95°)
OKLab	oklab(44.71% -0.0187 -0.1336)
OKLCH	oklch(44.71% 0.135 262.1)
XYZ	xyz(9.9131, 8.6560, 33.4894)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28509E #9E7628

analogous

#288B9E #28509E #3B289E

triadic

#28509E #9E2850 #509E28

tetradic

#28509E #9E288B #9E7628 #289E3B

square

#28509E #9E288B #9E7628 #289E3B

split-complementary

#28509E #9E3B28 #8B9E28

monochromatic

#0F1F3C #1C376D #28509E #376ACC #688ED9

Accessibility & contrast

On white

7.69

#28509E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#28509E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28509E

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28509E	#FFFFFF	#000000	##FFFFFF
##28509E	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2459A1

Deuteranopia (green-blind)

#004E9C

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28509e;
/* rgb */ color: rgb(40, 80, 158);
/* oklch */ color: oklch(44.7% 0.135 262.1);

Tailwind

colors: {
  custom: {
    50: '#7280bb',
    500: '#28509e',
    950: '#000000',
  },
}

SCSS

$custom: #28509e;
$custom-light: #7280bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28509e",
  "rgb": {
    "r": 40,
    "g": 80,
    "b": 158
  },
  "hsl": {
    "h": 219.661,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.4471,
    "c": 0.13492,
    "h": 262.1
  },
  "luminance": 0.08657
}

Semantic roles & 50–950 ramp

primary

#28509E

secondary

#BFA063

accent

#AD45E3

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #28509E

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

Preview Lab → · Contrast checker → · Palette generator →