#23239B#23239B

#23239B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.186 H 271.9°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#23239B
RGB	rgb(35, 35, 155)
HSL	hsl(240, 63%, 37%)
HSV	hsv(240, 77%, 61%)
CMYK	cmyk(77.4%, 77.4%, 0%, 39.2%)
CIE-LAB	lab(23.42, 41.72, -64.14)
CIE-LCH	lch(23.42, 76.51, 303.04°)
OKLab	oklab(35.77% 0.0063 -0.1857)
OKLCH	oklch(35.77% 0.186 271.9)
XYZ	xyz(7.2086, 3.9252, 31.3817)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23239B #9B9B23

analogous

#235F9B #23239B #5F239B

triadic

#23239B #9B2323 #239B23

tetradic

#23239B #9B235F #9B9B23 #239B5F

square

#23239B #9B235F #9B9B23 #239B5F

split-complementary

#23239B #9B5F23 #5F9B23

monochromatic

#0C0C37 #181869 #23239B #2E2ECD #5E5EDB

Accessibility & contrast

On white

11.76

#23239B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#23239B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23239B

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23239B	#FFFFFF	#000000	##FFFFFF
##23239B	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9E

Deuteranopia (green-blind)

#003299

Tritanopia (blue-blind)

#00475E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #23239b;
/* rgb */ color: rgb(35, 35, 155);
/* oklch */ color: oklch(35.8% 0.186 271.9);

Tailwind

colors: {
  custom: {
    50: '#7460ba',
    500: '#23239b',
    950: '#000000',
  },
}

SCSS

$custom: #23239b;
$custom-light: #7460ba;
$custom-dark: #000000;

JSON

{
  "hex": "#23239b",
  "rgb": {
    "r": 35,
    "g": 35,
    "b": 155
  },
  "hsl": {
    "h": 240,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.35771,
    "c": 0.18578,
    "h": 271.9
  },
  "luminance": 0.03926
}

Semantic roles & 50–950 ramp

primary

#23239B

secondary

#BFBF5A

accent

#E642E6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #23239B

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

Preview Lab → · Contrast checker → · Palette generator →