#28187D#28187D

#28187D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.158 H 279.3°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#28187D
RGB	rgb(40, 24, 125)
HSL	hsl(250, 68%, 29%)
HSV	hsv(250, 81%, 49%)
CMYK	cmyk(68%, 80.8%, 0%, 51%)
CIE-LAB	lab(18.30, 38.28, -53.87)
CIE-LCH	lch(18.30, 66.09, 305.40°)
OKLab	oklab(31.27% 0.0256 -0.1555)
OKLCH	oklch(31.27% 0.158 279.3)
XYZ	xyz(4.9022, 2.5847, 19.6386)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28187D #6D7D18

analogous

#183B7D #28187D #5B187D

triadic

#28187D #7D2818 #187D28

tetradic

#28187D #7D183B #6D7D18 #187D5B

square

#28187D #7D183B #6D7D18 #187D5B

split-complementary

#28187D #7D5B18 #3B7D18

monochromatic

#08051A #180E4A #28187D #3822B0 #5037D9

Accessibility & contrast

On white

13.84

#28187D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#28187D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28187D

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28187D	#FFFFFF	#000000	##FFFFFF
##28187D	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003080

Deuteranopia (green-blind)

#00297B

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28187d;
/* rgb */ color: rgb(40, 24, 125);
/* oklch */ color: oklch(31.3% 0.158 279.3);

Tailwind

colors: {
  custom: {
    50: '#6f58a4',
    500: '#28187d',
    950: '#000000',
  },
}

SCSS

$custom: #28187d;
$custom-light: #6f58a4;
$custom-dark: #000000;

JSON

{
  "hex": "#28187d",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 125
  },
  "hsl": {
    "h": 249.505,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31267,
    "c": 0.15763,
    "h": 279.3
  },
  "luminance": 0.02585
}

Semantic roles & 50–950 ramp

primary

#28187D

secondary

#9FB23F

accent

#EB3DCF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28187D

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

Preview Lab → · Contrast checker → · Palette generator →