#28508D#28508D

#28508D is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.5% C 0.111 H 258.7°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#28508D
RGB	rgb(40, 80, 141)
HSL	hsl(216, 56%, 35%)
HSV	hsv(216, 72%, 55%)
CMYK	cmyk(71.6%, 43.3%, 0%, 44.7%)
CIE-LAB	lab(34.21, 7.60, -38.00)
CIE-LCH	lch(34.21, 38.75, 281.31°)
OKLab	oklab(43.51% -0.0217 -0.1085)
OKLCH	oklch(43.51% 0.111 258.7)
XYZ	xyz(8.5497, 8.1106, 26.3091)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28508D #8D6528

analogous

#28828D #28508D #33288D

triadic

#28508D #8D2850 #508D28

tetradic

#28508D #8D2882 #8D6528 #288D33

square

#28508D #8D2882 #8D6528 #288D33

split-complementary

#28508D #8D3328 #828D28

monochromatic

#0D1A2E #1A355D #28508D #366BBD #5E8CD1

Accessibility & contrast

On white

8.01

#28508D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#28508D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28508D

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28508D	#FFFFFF	#000000	##FFFFFF
##28508D	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33558F

Deuteranopia (green-blind)

#224C8C

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #28508d;
/* rgb */ color: rgb(40, 80, 141);
/* oklch */ color: oklch(43.5% 0.111 258.7);

Tailwind

colors: {
  custom: {
    50: '#6f80af',
    500: '#28508d',
    950: '#000000',
  },
}

SCSS

$custom: #28508d;
$custom-light: #6f80af;
$custom-dark: #000000;

JSON

{
  "hex": "#28508d",
  "rgb": {
    "r": 40,
    "g": 80,
    "b": 141
  },
  "hsl": {
    "h": 216.238,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43508,
    "c": 0.11067,
    "h": 258.7
  },
  "luminance": 0.08112
}

Semantic roles & 50–950 ramp

primary

#28508D

secondary

#B7925A

accent

#A449DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28508D

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

Preview Lab → · Contrast checker → · Palette generator →