#23319B#23319B

#23319B is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.0% C 0.171 H 269.8°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#23319B
RGB	rgb(35, 49, 155)
HSL	hsl(233, 63%, 37%)
HSV	hsv(233, 77%, 61%)
CMYK	cmyk(77.4%, 68.4%, 0%, 39.2%)
CIE-LAB	lab(26.50, 33.19, -59.06)
CIE-LCH	lch(26.50, 67.75, 299.34°)
OKLab	oklab(37.98% -0.0004 -0.1709)
OKLCH	oklch(37.98% 0.171 269.8)
XYZ	xyz(7.7058, 4.9197, 31.5475)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23319B #9B8D23

analogous

#236D9B #23319B #51239B

triadic

#23319B #9B2331 #319B23

tetradic

#23319B #9B236D #9B8D23 #239B51

square

#23319B #9B236D #9B8D23 #239B51

split-complementary

#23319B #9B5123 #6D9B23

monochromatic

#0C1137 #182169 #23319B #2E41CD #5E6CDB

Accessibility & contrast

On white

10.58

#23319B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#23319B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23319B

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23319B	#FFFFFF	#000000	##FFFFFF
##23319B	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003999

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23319b;
/* rgb */ color: rgb(35, 49, 155);
/* oklch */ color: oklch(38.0% 0.171 269.8);

Tailwind

colors: {
  custom: {
    50: '#7269ba',
    500: '#23319b',
    950: '#000000',
  },
}

SCSS

$custom: #23319b;
$custom-light: #7269ba;
$custom-dark: #000000;

JSON

{
  "hex": "#23319b",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 155
  },
  "hsl": {
    "h": 233,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37981,
    "c": 0.17092,
    "h": 269.8
  },
  "luminance": 0.04921
}

Semantic roles & 50–950 ramp

primary

#23319B

secondary

#BFB45A

accent

#D342E6

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #23319B

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

Preview Lab → · Contrast checker → · Palette generator →