#28187A#28187A

#28187A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.154 H 279.9°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#28187A
RGB	rgb(40, 24, 122)
HSL	hsl(250, 67%, 29%)
HSV	hsv(250, 80%, 48%)
CMYK	cmyk(67.2%, 80.3%, 0%, 52.2%)
CIE-LAB	lab(17.96, 37.32, -52.51)
CIE-LCH	lch(17.96, 64.42, 305.40°)
OKLab	oklab(30.93% 0.0264 -0.1516)
OKLCH	oklch(30.93% 0.154 279.9)
XYZ	xyz(4.7134, 2.5091, 18.6445)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28187A #6A7A18

analogous

#18397A #28187A #59187A

triadic

#28187A #7A2818 #187A28

tetradic

#28187A #7A1839 #6A7A18 #187A59

square

#28187A #7A1839 #6A7A18 #187A59

split-complementary

#28187A #7A5918 #397A18

monochromatic

#08051A #170E47 #28187A #3922AD #5035D7

Accessibility & contrast

On white

13.98

#28187A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#28187A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28187A

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28187A	#FFFFFF	#000000	##FFFFFF
##28187A	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7D

Deuteranopia (green-blind)

#002878

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #28187a;
/* rgb */ color: rgb(40, 24, 122);
/* oklch */ color: oklch(30.9% 0.154 279.9);

Tailwind

colors: {
  custom: {
    50: '#6f58a2',
    500: '#28187a',
    950: '#000000',
  },
}

SCSS

$custom: #28187a;
$custom-light: #6f58a2;
$custom-dark: #000000;

JSON

{
  "hex": "#28187a",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 122
  },
  "hsl": {
    "h": 249.796,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30931,
    "c": 0.15388,
    "h": 279.9
  },
  "luminance": 0.0251
}

Semantic roles & 50–950 ramp

primary

#28187A

secondary

#9DAF3F

accent

#EA3ECE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28187A

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

Preview Lab → · Contrast checker → · Palette generator →