#2B289C#2B289C

#2B289C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.1% C 0.180 H 274.3°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#2B289C
RGB	rgb(43, 40, 156)
HSL	hsl(242, 59%, 38%)
HSV	hsv(242, 74%, 61%)
CMYK	cmyk(72.4%, 74.4%, 0%, 38.8%)
CIE-LAB	lab(25.05, 39.92, -62.05)
CIE-LCH	lch(25.05, 73.79, 302.76°)
OKLab	oklab(37.09% 0.0135 -0.1794)
OKLCH	oklch(37.09% 0.18 274.3)
XYZ	xyz(7.7538, 4.4307, 31.8926)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B289C #999C28

analogous

#285F9C #2B289C #65289C

triadic

#2B289C #9C2B28 #289C2B

tetradic

#2B289C #9C285F #999C28 #289C65

square

#2B289C #9C285F #999C28 #289C65

split-complementary

#2B289C #9C6528 #5F9C28

monochromatic

#100F3B #1E1C6B #2B289C #3A36CB #6967D8

Accessibility & contrast

On white

11.13

#2B289C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2B289C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B289C

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B289C	#FFFFFF	#000000	##FFFFFF
##2B289C	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419F

Deuteranopia (green-blind)

#00369A

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b289c;
/* rgb */ color: rgb(43, 40, 156);
/* oklch */ color: oklch(37.1% 0.180 274.3);

Tailwind

colors: {
  custom: {
    50: '#7663ba',
    500: '#2b289c',
    950: '#000000',
  },
}

SCSS

$custom: #2b289c;
$custom-light: #7663ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2b289c",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 156
  },
  "hsl": {
    "h": 241.552,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37088,
    "c": 0.17996,
    "h": 274.3
  },
  "luminance": 0.04431
}

Semantic roles & 50–950 ramp

primary

#2B289C

secondary

#BCBE62

accent

#E245DE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2B289C

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

Preview Lab → · Contrast checker → · Palette generator →