#28518C#28518C

#28518C is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.7% C 0.108 H 257.7°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#28518C
RGB	rgb(40, 81, 140)
HSL	hsl(215, 56%, 35%)
HSV	hsv(215, 71%, 55%)
CMYK	cmyk(71.4%, 42.1%, 0%, 45.1%)
CIE-LAB	lab(34.45, 6.55, -37.00)
CIE-LCH	lch(34.45, 37.58, 280.04°)
OKLab	oklab(43.68% -0.023 -0.1056)
OKLCH	oklch(43.68% 0.108 257.7)
XYZ	xyz(8.5494, 8.2285, 25.9436)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28518C #8C6328

analogous

#28838C #28518C #31288C

triadic

#28518C #8C2851 #518C28

tetradic

#28518C #8C2883 #8C6328 #288C31

square

#28518C #8C2883 #8C6328 #288C31

split-complementary

#28518C #8C3128 #838C28

monochromatic

#0D1A2D #1A355C #28518C #366DBC #5E8DD1

Accessibility & contrast

On white

7.94

#28518C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#28518C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28518C

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28518C	#FFFFFF	#000000	##FFFFFF
##28518C	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35568E

Deuteranopia (green-blind)

#254D8B

Tritanopia (blue-blind)

#005F67

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #28518c;
/* rgb */ color: rgb(40, 81, 140);
/* oklch */ color: oklch(43.7% 0.108 257.7);

Tailwind

colors: {
  custom: {
    50: '#6f81ae',
    500: '#28518c',
    950: '#000000',
  },
}

SCSS

$custom: #28518c;
$custom-light: #6f81ae;
$custom-dark: #000000;

JSON

{
  "hex": "#28518c",
  "rgb": {
    "r": 40,
    "g": 81,
    "b": 140
  },
  "hsl": {
    "h": 215.4,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.43676,
    "c": 0.10804,
    "h": 257.7
  },
  "luminance": 0.08229
}

Semantic roles & 50–950 ramp

primary

#28518C

secondary

#B6905A

accent

#A149DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28518C

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

Preview Lab → · Contrast checker → · Palette generator →