#28319F#28319F

#28319F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.175 H 271.5°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#28319F
RGB	rgb(40, 49, 159)
HSL	hsl(235, 60%, 39%)
HSV	hsv(235, 75%, 62%)
CMYK	cmyk(74.8%, 69.2%, 0%, 37.6%)
CIE-LAB	lab(27.16, 35.17, -60.41)
CIE-LCH	lch(27.16, 69.90, 300.21°)
OKLab	oklab(38.65% 0.0044 -0.1748)
OKLCH	oklch(38.65% 0.175 271.5)
XYZ	xyz(8.2293, 5.1501, 33.3545)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28319F #9F9628

analogous

#286D9F #28319F #5B289F

triadic

#28319F #9F2831 #319F28

tetradic

#28319F #9F286D #9F9628 #289F5B

square

#28319F #9F286D #9F9628 #289F5B

split-complementary

#28319F #9F5B28 #6D9F28

monochromatic

#0F133D #1C226E #28319F #3743CD #6871D9

Accessibility & contrast

On white

10.34

#28319F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#28319F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28319F

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28319F	#FFFFFF	#000000	##FFFFFF
##28319F	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A2

Deuteranopia (green-blind)

#003B9D

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #28319f;
/* rgb */ color: rgb(40, 49, 159);
/* oklch */ color: oklch(38.6% 0.175 271.5);

Tailwind

colors: {
  custom: {
    50: '#7569bc',
    500: '#28319f',
    950: '#000000',
  },
}

SCSS

$custom: #28319f;
$custom-light: #7569bc;
$custom-dark: #000000;

JSON

{
  "hex": "#28319f",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 159
  },
  "hsl": {
    "h": 235.462,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.38645,
    "c": 0.17482,
    "h": 271.5
  },
  "luminance": 0.05151
}

Semantic roles & 50–950 ramp

primary

#28319F

secondary

#BFB864

accent

#D745E3

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #28319F

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

Preview Lab → · Contrast checker → · Palette generator →