#23317B#23317B

#23317B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.126 H 270.4°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#23317B
RGB	rgb(35, 49, 123)
HSL	hsl(230, 56%, 31%)
HSV	hsv(230, 72%, 48%)
CMYK	cmyk(71.5%, 60.2%, 0%, 51.8%)
CIE-LAB	lab(23.62, 21.04, -43.89)
CIE-LCH	lch(23.62, 48.67, 295.61°)
OKLab	oklab(34.96% 0.0008 -0.1265)
OKLCH	oklch(34.96% 0.126 270.4)
XYZ	xyz(5.3654, 3.9835, 19.2212)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23317B #7B6D23

analogous

#235D7B #23317B #41237B

triadic

#23317B #7B2331 #317B23

tetradic

#23317B #7B235D #7B6D23 #237B41

square

#23317B #7B235D #7B6D23 #237B41

split-complementary

#23317B #7B4123 #5D7B23

monochromatic

#080B1C #151E4B #23317B #3144AB #4C61CC

Accessibility & contrast

On white

11.69

#23317B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#23317B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23317B

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23317B	#FFFFFF	#000000	##FFFFFF
##23317B	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7D

Deuteranopia (green-blind)

#00347A

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #23317b;
/* rgb */ color: rgb(35, 49, 123);
/* oklch */ color: oklch(35.0% 0.126 270.4);

Tailwind

colors: {
  custom: {
    50: '#6a68a2',
    500: '#23317b',
    950: '#000000',
  },
}

SCSS

$custom: #23317b;
$custom-light: #6a68a2;
$custom-dark: #000000;

JSON

{
  "hex": "#23317b",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 123
  },
  "hsl": {
    "h": 230.455,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.34964,
    "c": 0.12646,
    "h": 270.4
  },
  "luminance": 0.03984
}

Semantic roles & 50–950 ramp

primary

#23317B

secondary

#AE9E4C

accent

#C749DF

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23317B

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

Preview Lab → · Contrast checker → · Palette generator →