#23287C#23287C

#23287C is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.140 H 273.3°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#23287C
RGB	rgb(35, 40, 124)
HSL	hsl(237, 56%, 31%)
HSV	hsv(237, 72%, 49%)
CMYK	cmyk(71.8%, 67.7%, 0%, 51.4%)
CIE-LAB	lab(21.32, 27.59, -48.27)
CIE-LCH	lch(21.32, 55.60, 299.75°)
OKLab	oklab(33.3% 0.0081 -0.1394)
OKLCH	oklch(33.3% 0.14 273.3)
XYZ	xyz(5.0888, 3.3297, 19.4394)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23287C #7C7723

analogous

#23547C #23287C #4A237C

triadic

#23287C #7C2328 #287C23

tetradic

#23287C #7C2354 #7C7723 #237C4A

square

#23287C #7C2354 #7C7723 #237C4A

split-complementary

#23287C #7C4A23 #547C23

monochromatic

#08091D #16194C #23287C #3037AC #4D54CD

Accessibility & contrast

On white

12.61

#23287C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#23287C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23287C

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23287C	#FFFFFF	#000000	##FFFFFF
##23287C	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377F

Deuteranopia (green-blind)

#002F7A

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #23287c;
/* rgb */ color: rgb(35, 40, 124);
/* oklch */ color: oklch(33.3% 0.140 273.3);

Tailwind

colors: {
  custom: {
    50: '#6b62a3',
    500: '#23287c',
    950: '#000000',
  },
}

SCSS

$custom: #23287c;
$custom-light: #6b62a3;
$custom-dark: #000000;

JSON

{
  "hex": "#23287c",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 124
  },
  "hsl": {
    "h": 236.629,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33296,
    "c": 0.13965,
    "h": 273.3
  },
  "luminance": 0.0333
}

Semantic roles & 50–950 ramp

primary

#23287C

secondary

#AFA94C

accent

#D749DF

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #23287C

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

Preview Lab → · Contrast checker → · Palette generator →