#28518E#28518E

#28518E is a dark, moderate blue. Relative luminance 0.083; OKLCH L 43.8% C 0.111 H 258.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#28518E
RGB	rgb(40, 81, 142)
HSL	hsl(216, 56%, 36%)
HSV	hsv(216, 72%, 56%)
CMYK	cmyk(71.8%, 43%, 0%, 44.3%)
CIE-LAB	lab(34.58, 7.32, -38.03)
CIE-LCH	lch(34.58, 38.72, 280.90°)
OKLab	oklab(43.81% -0.0225 -0.1086)
OKLCH	oklch(43.81% 0.111 258.3)
XYZ	xyz(8.6982, 8.2881, 26.7273)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28518E #8E6528

analogous

#28848E #28518E #32288E

triadic

#28518E #8E2851 #518E28

tetradic

#28518E #8E2884 #8E6528 #288E32

square

#28518E #8E2884 #8E6528 #288E32

split-complementary

#28518E #8E3228 #848E28

monochromatic

#0D1B2F #1B365E #28518E #356CBE #5F8DD2

Accessibility & contrast

On white

7.90

#28518E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#28518E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28518E

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28518E	#FFFFFF	#000000	##FFFFFF
##28518E	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345690

Deuteranopia (green-blind)

#234D8D

Tritanopia (blue-blind)

#005F68

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #28518e;
/* rgb */ color: rgb(40, 81, 142);
/* oklch */ color: oklch(43.8% 0.111 258.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#28518e",
  "rgb": {
    "r": 40,
    "g": 81,
    "b": 142
  },
  "hsl": {
    "h": 215.882,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.43809,
    "c": 0.1109,
    "h": 258.3
  },
  "luminance": 0.08289
}

Semantic roles & 50–950 ramp

primary

#28518E

secondary

#B7925B

accent

#A348DF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28518E

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

Preview Lab → · Contrast checker → · Palette generator →