#28247B#28247B

#28247B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.8% C 0.142 H 277.2°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#28247B
RGB	rgb(40, 36, 123)
HSL	hsl(243, 55%, 31%)
HSV	hsv(243, 71%, 48%)
CMYK	cmyk(67.5%, 70.7%, 0%, 51.8%)
CIE-LAB	lab(20.61, 30.56, -48.79)
CIE-LCH	lch(20.61, 57.57, 302.06°)
OKLab	oklab(32.84% 0.0178 -0.1408)
OKLCH	oklch(32.84% 0.142 277.2)
XYZ	xyz(5.0799, 3.1425, 19.0739)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28247B #777B24

analogous

#244B7B #28247B #53247B

triadic

#28247B #7B2824 #247B28

tetradic

#28247B #7B244B #777B24 #247B53

square

#28247B #7B244B #777B24 #247B53

split-complementary

#28247B #7B5324 #4B7B24

monochromatic

#09081C #19164C #28247B #3732AA #544ECB

Accessibility & contrast

On white

12.89

#28247B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#28247B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28247B

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28247B	#FFFFFF	#000000	##FFFFFF
##28247B	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #28247b;
/* rgb */ color: rgb(40, 36, 123);
/* oklch */ color: oklch(32.8% 0.142 277.2);

Tailwind

colors: {
  custom: {
    50: '#6e5fa2',
    500: '#28247b',
    950: '#000000',
  },
}

SCSS

$custom: #28247b;
$custom-light: #6e5fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#28247b",
  "rgb": {
    "r": 40,
    "g": 36,
    "b": 123
  },
  "hsl": {
    "h": 242.759,
    "s": 54.717,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32843,
    "c": 0.14192,
    "h": 277.2
  },
  "luminance": 0.03143
}

Semantic roles & 50–950 ramp

primary

#28247B

secondary

#A9AD4D

accent

#DE4AD7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #28247B

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

Preview Lab → · Contrast checker → · Palette generator →