#23308C#23308C

#23308C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.152 H 270.5°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#23308C
RGB	rgb(35, 48, 140)
HSL	hsl(233, 60%, 34%)
HSV	hsv(233, 75%, 55%)
CMYK	cmyk(75%, 65.7%, 0%, 45.1%)
CIE-LAB	lab(24.84, 28.25, -52.55)
CIE-LCH	lch(24.84, 59.66, 298.26°)
OKLab	oklab(36.33% 0.0012 -0.1519)
OKLCH	oklch(36.33% 0.152 270.5)
XYZ	xyz(6.4821, 4.3640, 25.3066)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23308C #8C7F23

analogous

#23658C #23308C #4A238C

triadic

#23308C #8C2330 #308C23

tetradic

#23308C #8C2365 #8C7F23 #238C4A

square

#23308C #8C2365 #8C7F23 #238C4A

split-complementary

#23308C #8C4A23 #658C23

monochromatic

#0B0E2A #171F5B #23308C #2F41BD #5565D4

Accessibility & contrast

On white

11.21

#23308C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#23308C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23308C

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23308C	#FFFFFF	#000000	##FFFFFF
##23308C	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)

#00408F

Deuteranopia (green-blind)

#00368A

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #23308c;
/* rgb */ color: rgb(35, 48, 140);
/* oklch */ color: oklch(36.3% 0.152 270.5);

Tailwind

colors: {
  custom: {
    50: '#6f68ae',
    500: '#23308c',
    950: '#000000',
  },
}

SCSS

$custom: #23308c;
$custom-light: #6f68ae;
$custom-dark: #000000;

JSON

{
  "hex": "#23308c",
  "rgb": {
    "r": 35,
    "g": 48,
    "b": 140
  },
  "hsl": {
    "h": 232.571,
    "s": 60,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36331,
    "c": 0.15189,
    "h": 270.5
  },
  "luminance": 0.04365
}

Semantic roles & 50–950 ramp

primary

#23308C

secondary

#B8AC52

accent

#D045E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #23308C

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

Preview Lab → · Contrast checker → · Palette generator →