#23288C#23288C

#23288C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.161 H 272.3°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#23288C
RGB	rgb(35, 40, 140)
HSL	hsl(237, 60%, 34%)
HSV	hsv(237, 75%, 55%)
CMYK	cmyk(75%, 71.4%, 0%, 45.1%)
CIE-LAB	lab(22.89, 33.48, -55.76)
CIE-LCH	lch(22.89, 65.04, 300.98°)
OKLab	oklab(34.91% 0.0063 -0.1613)
OKLCH	oklch(34.91% 0.161 272.3)
XYZ	xyz(6.1840, 3.7677, 25.2072)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23288C #8C8723

analogous

#235D8C #23288C #53238C

triadic

#23288C #8C2328 #288C23

tetradic

#23288C #8C235D #8C8723 #238C53

square

#23288C #8C235D #8C8723 #238C53

split-complementary

#23288C #8C5323 #5D8C23

monochromatic

#0B0C2A #171A5B #23288C #2F36BD #555BD4

Accessibility & contrast

On white

11.98

#23288C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#23288C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23288C

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23288C	#FFFFFF	#000000	##FFFFFF
##23288C	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8F

Deuteranopia (green-blind)

#00328A

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #23288c;
/* rgb */ color: rgb(35, 40, 140);
/* oklch */ color: oklch(34.9% 0.161 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f62af',
    500: '#23288c',
    950: '#000000',
  },
}

SCSS

$custom: #23288c;
$custom-light: #6f62af;
$custom-dark: #000000;

JSON

{
  "hex": "#23288c",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 140
  },
  "hsl": {
    "h": 237.143,
    "s": 60,
    "l": 34.314
  },
  "oklch": {
    "l": 0.34912,
    "c": 0.16141,
    "h": 272.3
  },
  "luminance": 0.03768
}

Semantic roles & 50–950 ramp

primary

#23288C

secondary

#B8B452

accent

#DC45E3

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090510

muted

#7B797F

Preview Lab

Preview with #23288C

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

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