#23287F#23287F

#23287F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.144 H 273.1°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#23287F
RGB	rgb(35, 40, 127)
HSL	hsl(237, 57%, 32%)
HSV	hsv(237, 72%, 50%)
CMYK	cmyk(72.4%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(21.60, 28.71, -49.71)
CIE-LCH	lch(21.60, 57.40, 300.01°)
OKLab	oklab(33.59% 0.0079 -0.1436)
OKLCH	oklch(33.59% 0.144 273.1)
XYZ	xyz(5.2814, 3.4067, 20.4538)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23287F #7F7A23

analogous

#23567F #23287F #4C237F

triadic

#23287F #7F2328 #287F23

tetradic

#23287F #7F2356 #7F7A23 #237F4C

square

#23287F #7F2356 #7F7A23 #237F4C

split-complementary

#23287F #7F4C23 #567F23

monochromatic

#090A1F #16194F #23287F #3037AF #4E55CE

Accessibility & contrast

On white

12.49

#23287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#23287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23287F

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23287F	#FFFFFF	#000000	##FFFFFF
##23287F	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#00307D

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #23287f;
/* rgb */ color: rgb(35, 40, 127);
/* oklch */ color: oklch(33.6% 0.144 273.1);

Tailwind

colors: {
  custom: {
    50: '#6c62a5',
    500: '#23287f',
    950: '#000000',
  },
}

SCSS

$custom: #23287f;
$custom-light: #6c62a5;
$custom-dark: #000000;

JSON

{
  "hex": "#23287f",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 236.739,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33591,
    "c": 0.14382,
    "h": 273.1
  },
  "luminance": 0.03407
}

Semantic roles & 50–950 ramp

primary

#23287F

secondary

#B1AC4C

accent

#D848E0

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #23287F

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

Preview Lab → · Contrast checker → · Palette generator →