#28187E#28187E

#28187E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.159 H 279.2°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#28187E
RGB	rgb(40, 24, 126)
HSL	hsl(249, 68%, 29%)
HSV	hsv(249, 81%, 49%)
CMYK	cmyk(68.3%, 81%, 0%, 50.6%)
CIE-LAB	lab(18.41, 38.61, -54.32)
CIE-LCH	lch(18.41, 66.64, 305.40°)
OKLab	oklab(31.38% 0.0253 -0.1568)
OKLCH	oklch(31.38% 0.159 279.2)
XYZ	xyz(4.9664, 2.6103, 19.9767)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28187E #6E7E18

analogous

#183B7E #28187E #5B187E

triadic

#28187E #7E2818 #187E28

tetradic

#28187E #7E183B #6E7E18 #187E5B

square

#28187E #7E183B #6E7E18 #187E5B

split-complementary

#28187E #7E5B18 #3B7E18

monochromatic

#08051A #180E4B #28187E #3822B1 #5137D9

Accessibility & contrast

On white

13.80

#28187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#28187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28187E

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28187E	#FFFFFF	#000000	##FFFFFF
##28187E	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00297C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28187e;
/* rgb */ color: rgb(40, 24, 126);
/* oklch */ color: oklch(31.4% 0.159 279.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#28187e",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 249.412,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3138,
    "c": 0.15887,
    "h": 279.2
  },
  "luminance": 0.02611
}

Semantic roles & 50–950 ramp

primary

#28187E

secondary

#A0B23F

accent

#EB3DD0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28187E

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

Preview Lab → · Contrast checker → · Palette generator →