#23237A#23237A

#23237A is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.143 H 274.8°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#23237A
RGB	rgb(35, 35, 122)
HSL	hsl(240, 55%, 31%)
HSV	hsv(240, 71%, 48%)
CMYK	cmyk(71.3%, 71.3%, 0%, 52.2%)
CIE-LAB	lab(19.90, 30.15, -49.33)
CIE-LCH	lch(19.90, 57.81, 301.43°)
OKLab	oklab(32.21% 0.012 -0.1425)
OKLCH	oklch(32.21% 0.143 274.8)
XYZ	xyz(4.8059, 2.9641, 18.7274)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23237A #7A7A23

analogous

#234E7A #23237A #4E237A

triadic

#23237A #7A2323 #237A23

tetradic

#23237A #7A234E #7A7A23 #237A4E

square

#23237A #7A234E #7A7A23 #237A4E

split-complementary

#23237A #7A4E23 #4E7A23

monochromatic

#08081B #15154A #23237A #3131AA #4C4CCC

Accessibility & contrast

On white

13.18

#23237A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#23237A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23237A

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23237A	#FFFFFF	#000000	##FFFFFF
##23237A	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347D

Deuteranopia (green-blind)

#002C78

Tritanopia (blue-blind)

#003B4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #23237a;
/* rgb */ color: rgb(35, 35, 122);
/* oklch */ color: oklch(32.2% 0.143 274.8);

Tailwind

colors: {
  custom: {
    50: '#6b5ea1',
    500: '#23237a',
    950: '#000000',
  },
}

SCSS

$custom: #23237a;
$custom-light: #6b5ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#23237a",
  "rgb": {
    "r": 35,
    "g": 35,
    "b": 122
  },
  "hsl": {
    "h": 240,
    "s": 55.414,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32207,
    "c": 0.14303,
    "h": 274.8
  },
  "luminance": 0.02965
}

Semantic roles & 50–950 ramp

primary

#23237A

secondary

#ADAD4C

accent

#DF49DF

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08040F

muted

#7A797F

Preview Lab

Preview with #23237A

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

Preview Lab → · Contrast checker → · Palette generator →