#23237C#23237C

#23237C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.4% C 0.146 H 274.6°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#23237C
RGB	rgb(35, 35, 124)
HSL	hsl(240, 56%, 31%)
HSV	hsv(240, 72%, 49%)
CMYK	cmyk(71.8%, 71.8%, 0%, 51.4%)
CIE-LAB	lab(20.10, 30.88, -50.27)
CIE-LCH	lch(20.10, 59.00, 301.56°)
OKLab	oklab(32.41% 0.0117 -0.1453)
OKLCH	oklch(32.41% 0.146 274.6)
XYZ	xyz(4.9311, 3.0142, 19.3868)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23237C #7C7C23

analogous

#234F7C #23237C #4F237C

triadic

#23237C #7C2323 #237C23

tetradic

#23237C #7C234F #7C7C23 #237C4F

square

#23237C #7C234F #7C7C23 #237C4F

split-complementary

#23237C #7C4F23 #4F7C23

monochromatic

#08081D #16164C #23237C #3030AC #4D4DCD

Accessibility & contrast

On white

13.10

#23237C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#23237C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23237C

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23237C	#FFFFFF	#000000	##FFFFFF
##23237C	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002C7A

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #23237c;
/* rgb */ color: rgb(35, 35, 124);
/* oklch */ color: oklch(32.4% 0.146 274.6);

Tailwind

colors: {
  custom: {
    50: '#6c5ea3',
    500: '#23237c',
    950: '#000000',
  },
}

SCSS

$custom: #23237c;
$custom-light: #6c5ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#23237c",
  "rgb": {
    "r": 35,
    "g": 35,
    "b": 124
  },
  "hsl": {
    "h": 240,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32413,
    "c": 0.14574,
    "h": 274.6
  },
  "luminance": 0.03015
}

Semantic roles & 50–950 ramp

primary

#23237C

secondary

#AFAF4C

accent

#DF49DF

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #23237C

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

Preview Lab → · Contrast checker → · Palette generator →