#2F28AB#2F28AB

#2F28AB is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.9% C 0.197 H 274.5°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#2F28AB
RGB	rgb(47, 40, 171)
HSL	hsl(243, 62%, 41%)
HSV	hsv(243, 77%, 67%)
CMYK	cmyk(72.5%, 76.6%, 0%, 32.9%)
CIE-LAB	lab(26.91, 45.28, -68.07)
CIE-LCH	lch(26.91, 81.75, 303.63°)
OKLab	oklab(38.95% 0.0155 -0.1969)
OKLCH	oklch(38.95% 0.197 274.5)
XYZ	xyz(9.2793, 5.0613, 39.0081)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28AB #A4AB28

analogous

#2863AB #2F28AB #7128AB

triadic

#2F28AB #AB2F28 #28AB2F

tetradic

#2F28AB #AB2863 #A4AB28 #28AB71

square

#2F28AB #AB2863 #A4AB28 #28AB71

split-complementary

#2F28AB #AB7128 #63AB28

monochromatic

#141148 #211C79 #2F28AB #463ED2 #7670DE

Accessibility & contrast

On white

10.44

#2F28AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#2F28AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28AB

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28AB	#FFFFFF	#000000	##FFFFFF
##2F28AB	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AF

Deuteranopia (green-blind)

#0039A9

Tritanopia (blue-blind)

#004F68

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2f28ab;
/* rgb */ color: rgb(47, 40, 171);
/* oklch */ color: oklch(38.9% 0.197 274.5);

Tailwind

colors: {
  custom: {
    50: '#7b64c5',
    500: '#2f28ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f28ab;
$custom-light: #7b64c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28ab",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 171
  },
  "hsl": {
    "h": 243.206,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.38949,
    "c": 0.19747,
    "h": 274.5
  },
  "luminance": 0.05062
}

Semantic roles & 50–950 ramp

primary

#2F28AB

secondary

#C0C46A

accent

#E543DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F28AB

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

Preview Lab → · Contrast checker → · Palette generator →