#2F28BB#2F28BB

#2F28BB is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.7% C 0.216 H 273.2°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#2F28BB
RGB	rgb(47, 40, 187)
HSL	hsl(243, 65%, 45%)
HSV	hsv(243, 79%, 73%)
CMYK	cmyk(74.9%, 78.6%, 0%, 26.7%)
CIE-LAB	lab(28.67, 50.38, -74.71)
CIE-LCH	lch(28.67, 90.11, 304.00°)
OKLab	oklab(40.7% 0.012 -0.2162)
OKLCH	oklch(40.7% 0.217 273.2)
XYZ	xyz(10.8977, 5.7086, 47.5316)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F28BB #B4BB28

analogous

#286BBB #2F28BB #7928BB

triadic

#2F28BB #BB2F28 #28BB2F

tetradic

#2F28BB #BB286B #B4BB28 #28BB79

square

#2F28BB #BB286B #B4BB28 #28BB79

split-complementary

#2F28BB #BB7928 #6BBB28

monochromatic

#161256 #221D89 #2F28BB #4F48D8 #807BE3

Accessibility & contrast

On white

9.80

#2F28BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#2F28BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F28BB

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F28BB	#FFFFFF	#000000	##FFFFFF
##2F28BB	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABF

Deuteranopia (green-blind)

#003CB8

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f28bb;
/* rgb */ color: rgb(47, 40, 187);
/* oklch */ color: oklch(40.7% 0.216 273.2);

Tailwind

colors: {
  custom: {
    50: '#7f65d1',
    500: '#2f28bb',
    950: '#000000',
  },
}

SCSS

$custom: #2f28bb;
$custom-light: #7f65d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f28bb",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 187
  },
  "hsl": {
    "h": 242.857,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.40699,
    "c": 0.2165,
    "h": 273.2
  },
  "luminance": 0.0571
}

Semantic roles & 50–950 ramp

primary

#2F28BB

secondary

#C7CB74

accent

#E840E0

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #2F28BB

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

Preview Lab → · Contrast checker → · Palette generator →