#2B289A#2B289A

#2B289A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.9% C 0.177 H 274.5°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#2B289A
RGB	rgb(43, 40, 154)
HSL	hsl(242, 59%, 38%)
HSV	hsv(242, 74%, 60%)
CMYK	cmyk(72.1%, 74%, 0%, 39.6%)
CIE-LAB	lab(24.84, 39.25, -61.17)
CIE-LCH	lch(24.84, 72.68, 302.68°)
OKLab	oklab(36.88% 0.0139 -0.1769)
OKLCH	oklch(36.88% 0.177 274.5)
XYZ	xyz(7.5859, 4.3635, 31.0081)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B289A #979A28

analogous

#285E9A #2B289A #64289A

triadic

#2B289A #9A2B28 #289A2B

tetradic

#2B289A #9A285E #979A28 #289A64

square

#2B289A #9A285E #979A28 #289A64

split-complementary

#2B289A #9A6428 #5E9A28

monochromatic

#100F39 #1D1B69 #2B289A #3935CA #6865D7

Accessibility & contrast

On white

11.21

#2B289A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2B289A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B289A

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B289A	#FFFFFF	#000000	##FFFFFF
##2B289A	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409D

Deuteranopia (green-blind)

#003698

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b289a;
/* rgb */ color: rgb(43, 40, 154);
/* oklch */ color: oklch(36.9% 0.177 274.5);

Tailwind

colors: {
  custom: {
    50: '#7663b9',
    500: '#2b289a',
    950: '#000000',
  },
}

SCSS

$custom: #2b289a;
$custom-light: #7663b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b289a",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 154
  },
  "hsl": {
    "h": 241.579,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.36877,
    "c": 0.17743,
    "h": 274.5
  },
  "luminance": 0.04364
}

Semantic roles & 50–950 ramp

primary

#2B289A

secondary

#BBBD61

accent

#E246DE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2B289A

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

Preview Lab → · Contrast checker → · Palette generator →