#23317C#23317C

#23317C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.1% C 0.128 H 270.4°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#23317C
RGB	rgb(35, 49, 124)
HSL	hsl(231, 56%, 31%)
HSV	hsv(231, 72%, 49%)
CMYK	cmyk(71.8%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(23.70, 21.43, -44.39)
CIE-LCH	lch(23.70, 49.29, 295.77°)
OKLab	oklab(35.05% 0.0008 -0.1279)
OKLCH	oklch(35.05% 0.128 270.4)
XYZ	xyz(5.4283, 4.0087, 19.5525)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23317C #7C6E23

analogous

#235D7C #23317C #41237C

triadic

#23317C #7C2331 #317C23

tetradic

#23317C #7C235D #7C6E23 #237C41

square

#23317C #7C235D #7C6E23 #237C41

split-complementary

#23317C #7C4123 #5D7C23

monochromatic

#080B1D #161E4C #23317C #3044AC #4D61CD

Accessibility & contrast

On white

11.66

#23317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#23317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23317C

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23317C	#FFFFFF	#000000	##FFFFFF
##23317C	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #23317c;
/* rgb */ color: rgb(35, 49, 124);
/* oklch */ color: oklch(35.1% 0.128 270.4);

Tailwind

colors: {
  custom: {
    50: '#6a68a3',
    500: '#23317c',
    950: '#000000',
  },
}

SCSS

$custom: #23317c;
$custom-light: #6a68a3;
$custom-dark: #000000;

JSON

{
  "hex": "#23317c",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 230.562,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35052,
    "c": 0.12792,
    "h": 270.4
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#23317C

secondary

#AF9F4C

accent

#C849DF

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23317C

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

Preview Lab → · Contrast checker → · Palette generator →