#28528D#28528D

#28528D is a dark, moderate blue. Relative luminance 0.084; OKLCH L 44.0% C 0.108 H 257.3°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#28528D
RGB	rgb(40, 82, 141)
HSL	hsl(215, 56%, 35%)
HSV	hsv(215, 72%, 55%)
CMYK	cmyk(71.6%, 41.8%, 0%, 44.7%)
CIE-LAB	lab(34.82, 6.28, -37.03)
CIE-LCH	lch(34.82, 37.56, 279.62°)
OKLab	oklab(43.98% -0.0237 -0.1056)
OKLCH	oklch(43.98% 0.108 257.3)
XYZ	xyz(8.6983, 8.4079, 26.3586)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28528D #8D6328

analogous

#28848D #28528D #31288D

triadic

#28528D #8D2852 #528D28

tetradic

#28528D #8D2884 #8D6328 #288D31

square

#28528D #8D2884 #8D6328 #288D31

split-complementary

#28528D #8D3128 #848D28

monochromatic

#0D1B2E #1A365D #28528D #366EBD #5E8ED1

Accessibility & contrast

On white

7.83

#28528D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#28528D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28528D

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28528D	#FFFFFF	#000000	##FFFFFF
##28528D	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36578F

Deuteranopia (green-blind)

#264E8C

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #28528d;
/* rgb */ color: rgb(40, 82, 141);
/* oklch */ color: oklch(44.0% 0.108 257.3);

Tailwind

colors: {
  custom: {
    50: '#6f82af',
    500: '#28528d',
    950: '#000000',
  },
}

SCSS

$custom: #28528d;
$custom-light: #6f82af;
$custom-dark: #000000;

JSON

{
  "hex": "#28528d",
  "rgb": {
    "r": 40,
    "g": 82,
    "b": 141
  },
  "hsl": {
    "h": 215.05,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43978,
    "c": 0.10827,
    "h": 257.3
  },
  "luminance": 0.08409
}

Semantic roles & 50–950 ramp

primary

#28528D

secondary

#B7905A

accent

#A149DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28528D

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

Preview Lab → · Contrast checker → · Palette generator →