#23237B#23237B

#23237B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.144 H 274.7°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#23237B
RGB	rgb(35, 35, 123)
HSL	hsl(240, 56%, 31%)
HSV	hsv(240, 72%, 48%)
CMYK	cmyk(71.5%, 71.5%, 0%, 51.8%)
CIE-LAB	lab(20.00, 30.51, -49.80)
CIE-LCH	lch(20.00, 58.41, 301.50°)
OKLab	oklab(32.31% 0.0119 -0.1439)
OKLCH	oklch(32.31% 0.144 274.7)
XYZ	xyz(4.8681, 2.9890, 19.0554)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23237B #7B7B23

analogous

#234F7B #23237B #4F237B

triadic

#23237B #7B2323 #237B23

tetradic

#23237B #7B234F #7B7B23 #237B4F

square

#23237B #7B234F #7B7B23 #237B4F

split-complementary

#23237B #7B4F23 #4F7B23

monochromatic

#08081C #15154B #23237B #3131AB #4C4CCC

Accessibility & contrast

On white

13.14

#23237B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#23237B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23237B

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23237B	#FFFFFF	#000000	##FFFFFF
##23237B	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#002C79

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #23237b;
/* rgb */ color: rgb(35, 35, 123);
/* oklch */ color: oklch(32.3% 0.144 274.7);

Tailwind

colors: {
  custom: {
    50: '#6c5ea2',
    500: '#23237b',
    950: '#000000',
  },
}

SCSS

$custom: #23237b;
$custom-light: #6c5ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#23237b",
  "rgb": {
    "r": 35,
    "g": 35,
    "b": 123
  },
  "hsl": {
    "h": 240,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3231,
    "c": 0.14439,
    "h": 274.7
  },
  "luminance": 0.02989
}

Semantic roles & 50–950 ramp

primary

#23237B

secondary

#AEAE4C

accent

#DF49DF

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #23237B

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

Preview Lab → · Contrast checker → · Palette generator →