#2B289B#2B289B

#2B289B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.0% C 0.179 H 274.4°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#2B289B
RGB	rgb(43, 40, 155)
HSL	hsl(242, 59%, 38%)
HSV	hsv(242, 74%, 61%)
CMYK	cmyk(72.3%, 74.2%, 0%, 39.2%)
CIE-LAB	lab(24.94, 39.59, -61.61)
CIE-LCH	lch(24.94, 73.23, 302.72°)
OKLab	oklab(36.98% 0.0137 -0.1782)
OKLCH	oklch(36.98% 0.179 274.4)
XYZ	xyz(7.6695, 4.3970, 31.4485)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B289B #989B28

analogous

#285E9B #2B289B #64289B

triadic

#2B289B #9B2B28 #289B2B

tetradic

#2B289B #9B285E #989B28 #289B64

square

#2B289B #9B285E #989B28 #289B64

split-complementary

#2B289B #9B6428 #5E9B28

monochromatic

#100F3A #1E1B6A #2B289B #3935CB #6966D7

Accessibility & contrast

On white

11.17

#2B289B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2B289B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B289B

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B289B	#FFFFFF	#000000	##FFFFFF
##2B289B	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409E

Deuteranopia (green-blind)

#003699

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b289b;
/* rgb */ color: rgb(43, 40, 155);
/* oklch */ color: oklch(37.0% 0.179 274.4);

Tailwind

colors: {
  custom: {
    50: '#7663ba',
    500: '#2b289b',
    950: '#000000',
  },
}

SCSS

$custom: #2b289b;
$custom-light: #7663ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2b289b",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 155
  },
  "hsl": {
    "h": 241.565,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36982,
    "c": 0.17869,
    "h": 274.4
  },
  "luminance": 0.04398
}

Semantic roles & 50–950 ramp

primary

#2B289B

secondary

#BBBD61

accent

#E246DE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2B289B

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

Preview Lab → · Contrast checker → · Palette generator →