#23307C#23307C

#23307C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.129 H 270.7°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#23307C
RGB	rgb(35, 48, 124)
HSL	hsl(231, 56%, 31%)
HSV	hsv(231, 72%, 49%)
CMYK	cmyk(71.8%, 61.3%, 0%, 51.4%)
CIE-LAB	lab(23.42, 22.12, -44.83)
CIE-LCH	lch(23.42, 50.00, 296.27°)
OKLab	oklab(34.85% 0.0017 -0.1292)
OKLCH	oklch(34.85% 0.129 270.7)
XYZ	xyz(5.3869, 3.9259, 19.5388)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23307C #7C6F23

analogous

#235C7C #23307C #42237C

triadic

#23307C #7C2330 #307C23

tetradic

#23307C #7C235C #7C6F23 #237C42

square

#23307C #7C235C #7C6F23 #237C42

split-complementary

#23307C #7C4223 #5C7C23

monochromatic

#080B1D #161E4C #23307C #3042AC #4D5FCD

Accessibility & contrast

On white

11.76

#23307C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#23307C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23307C

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23307C	#FFFFFF	#000000	##FFFFFF
##23307C	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)

#003C7F

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #23307c;
/* rgb */ color: rgb(35, 48, 124);
/* oklch */ color: oklch(34.8% 0.129 270.7);

Tailwind

colors: {
  custom: {
    50: '#6b68a3',
    500: '#23307c',
    950: '#000000',
  },
}

SCSS

$custom: #23307c;
$custom-light: #6b68a3;
$custom-dark: #000000;

JSON

{
  "hex": "#23307c",
  "rgb": {
    "r": 35,
    "g": 48,
    "b": 124
  },
  "hsl": {
    "h": 231.236,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34847,
    "c": 0.12926,
    "h": 270.7
  },
  "luminance": 0.03926
}

Semantic roles & 50–950 ramp

primary

#23307C

secondary

#AFA04C

accent

#C949DF

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23307C

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

Preview Lab → · Contrast checker → · Palette generator →