#28519B#28519B

#28519B is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.7% C 0.129 H 261.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#28519B
RGB	rgb(40, 81, 155)
HSL	hsl(219, 59%, 38%)
HSV	hsv(219, 74%, 61%)
CMYK	cmyk(74.2%, 47.7%, 0%, 39.2%)
CIE-LAB	lab(35.40, 12.35, -44.58)
CIE-LCH	lch(35.40, 46.26, 285.48°)
OKLab	oklab(44.71% -0.02 -0.1279)
OKLCH	oklch(44.71% 0.129 261.1)
XYZ	xyz(9.7318, 8.7015, 32.1707)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28519B #9B7228

analogous

#288A9B #28519B #39289B

triadic

#28519B #9B2851 #519B28

tetradic

#28519B #9B288A #9B7228 #289B39

square

#28519B #9B288A #9B7228 #289B39

split-complementary

#28519B #9B3928 #8A9B28

monochromatic

#0F1E3A #1B386A #28519B #356BCB #668ED7

Accessibility & contrast

On white

7.66

#28519B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#28519B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28519B

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28519B	#FFFFFF	#000000	##FFFFFF
##28519B	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A599E

Deuteranopia (green-blind)

#0D4E9A

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28519b;
/* rgb */ color: rgb(40, 81, 155);
/* oklch */ color: oklch(44.7% 0.129 261.1);

Tailwind

colors: {
  custom: {
    50: '#7281b9',
    500: '#28519b',
    950: '#000000',
  },
}

SCSS

$custom: #28519b;
$custom-light: #7281b9;
$custom-dark: #000000;

JSON

{
  "hex": "#28519b",
  "rgb": {
    "r": 40,
    "g": 81,
    "b": 155
  },
  "hsl": {
    "h": 218.609,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44714,
    "c": 0.12942,
    "h": 261.1
  },
  "luminance": 0.08703
}

Semantic roles & 50–950 ramp

primary

#28519B

secondary

#BD9D61

accent

#AA46E2

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #28519B

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

Preview Lab → · Contrast checker → · Palette generator →