#2B289E#2B289E

#2B289E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.3% C 0.182 H 274.1°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#2B289E
RGB	rgb(43, 40, 158)
HSL	hsl(242, 60%, 39%)
HSV	hsv(242, 75%, 62%)
CMYK	cmyk(72.8%, 74.7%, 0%, 38%)
CIE-LAB	lab(25.26, 40.60, -62.93)
CIE-LCH	lch(25.26, 74.89, 302.83°)
OKLab	oklab(37.3% 0.0131 -0.182)
OKLCH	oklch(37.3% 0.182 274.1)
XYZ	xyz(7.9246, 4.4990, 32.7919)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B289E #9B9E28

analogous

#28609E #2B289E #66289E

triadic

#2B289E #9E2B28 #289E2B

tetradic

#2B289E #9E2860 #9B9E28 #289E66

square

#2B289E #9E2860 #9B9E28 #289E66

split-complementary

#2B289E #9E6628 #609E28

monochromatic

#100F3C #1E1C6D #2B289E #3B37CC #6B68D9

Accessibility & contrast

On white

11.05

#2B289E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2B289E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B289E

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B289E	#FFFFFF	#000000	##FFFFFF
##2B289E	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A1

Deuteranopia (green-blind)

#00369C

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b289e;
/* rgb */ color: rgb(43, 40, 158);
/* oklch */ color: oklch(37.3% 0.182 274.1);

Tailwind

colors: {
  custom: {
    50: '#7764bc',
    500: '#2b289e',
    950: '#000000',
  },
}

SCSS

$custom: #2b289e;
$custom-light: #7764bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b289e",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 158
  },
  "hsl": {
    "h": 241.525,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37299,
    "c": 0.18247,
    "h": 274.1
  },
  "luminance": 0.045
}

Semantic roles & 50–950 ramp

primary

#2B289E

secondary

#BCBF63

accent

#E345DF

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2B289E

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

Preview Lab → · Contrast checker → · Palette generator →