#28518D#28518D

#28518D is a dark, moderate blue. Relative luminance 0.083; OKLCH L 43.7% C 0.109 H 258.0°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#28518D
RGB	rgb(40, 81, 141)
HSL	hsl(216, 56%, 35%)
HSV	hsv(216, 72%, 55%)
CMYK	cmyk(71.6%, 42.6%, 0%, 44.7%)
CIE-LAB	lab(34.51, 6.94, -37.51)
CIE-LCH	lch(34.51, 38.15, 280.48°)
OKLab	oklab(43.74% -0.0227 -0.1071)
OKLCH	oklch(43.74% 0.109 258)
XYZ	xyz(8.6235, 8.2582, 26.3337)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28518D #8D6428

analogous

#28838D #28518D #32288D

triadic

#28518D #8D2851 #518D28

tetradic

#28518D #8D2883 #8D6428 #288D32

square

#28518D #8D2883 #8D6428 #288D32

split-complementary

#28518D #8D3228 #838D28

monochromatic

#0D1A2E #1A365D #28518D #366CBD #5E8DD1

Accessibility & contrast

On white

7.92

#28518D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#28518D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28518D

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28518D	#FFFFFF	#000000	##FFFFFF
##28518D	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35568F

Deuteranopia (green-blind)

#244D8C

Tritanopia (blue-blind)

#005F68

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #28518d;
/* rgb */ color: rgb(40, 81, 141);
/* oklch */ color: oklch(43.7% 0.109 258.0);

Tailwind

colors: {
  custom: {
    50: '#6f81af',
    500: '#28518d',
    950: '#000000',
  },
}

SCSS

$custom: #28518d;
$custom-light: #6f81af;
$custom-dark: #000000;

JSON

{
  "hex": "#28518d",
  "rgb": {
    "r": 40,
    "g": 81,
    "b": 141
  },
  "hsl": {
    "h": 215.644,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43742,
    "c": 0.10947,
    "h": 258
  },
  "luminance": 0.08259
}

Semantic roles & 50–950 ramp

primary

#28518D

secondary

#B7915A

accent

#A249DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28518D

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

Preview Lab → · Contrast checker → · Palette generator →