#23289C#23289C

#23289C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.6% C 0.182 H 271.3°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#23289C
RGB	rgb(35, 40, 156)
HSL	hsl(238, 63%, 37%)
HSV	hsv(238, 78%, 61%)
CMYK	cmyk(77.6%, 74.4%, 0%, 38.8%)
CIE-LAB	lab(24.56, 39.17, -62.87)
CIE-LCH	lch(24.56, 74.08, 301.92°)
OKLab	oklab(36.61% 0.004 -0.182)
OKLCH	oklch(36.61% 0.182 271.3)
XYZ	xyz(7.4506, 4.2744, 31.8784)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23289C #9C9723

analogous

#23649C #23289C #5B239C

triadic

#23289C #9C2328 #289C23

tetradic

#23289C #9C2364 #9C9723 #239C5B

square

#23289C #9C2364 #9C9723 #239C5B

split-complementary

#23289C #9C5B23 #649C23

monochromatic

#0D0E38 #181B6A #23289C #2E35CE #5E64DB

Accessibility & contrast

On white

11.32

#23289C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#23289C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23289C

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23289C	#FFFFFF	#000000	##FFFFFF
##23289C	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409F

Deuteranopia (green-blind)

#00349A

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #23289c;
/* rgb */ color: rgb(35, 40, 156);
/* oklch */ color: oklch(36.6% 0.182 271.3);

Tailwind

colors: {
  custom: {
    50: '#7363ba',
    500: '#23289c',
    950: '#000000',
  },
}

SCSS

$custom: #23289c;
$custom-light: #7363ba;
$custom-dark: #000000;

JSON

{
  "hex": "#23289c",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 156
  },
  "hsl": {
    "h": 237.521,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36609,
    "c": 0.18207,
    "h": 271.3
  },
  "luminance": 0.04275
}

Semantic roles & 50–950 ramp

primary

#23289C

secondary

#C0BC5B

accent

#E041E6

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #23289C

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

Preview Lab → · Contrast checker → · Palette generator →