#23288A#23288A

#23288A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.7% C 0.159 H 272.4°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#23288A
RGB	rgb(35, 40, 138)
HSL	hsl(237, 60%, 34%)
HSV	hsv(237, 75%, 54%)
CMYK	cmyk(74.6%, 71%, 0%, 45.9%)
CIE-LAB	lab(22.69, 32.75, -54.84)
CIE-LCH	lch(22.69, 63.88, 300.85°)
OKLab	oklab(34.71% 0.0066 -0.1586)
OKLCH	oklch(34.71% 0.159 272.4)
XYZ	xyz(6.0378, 3.7093, 24.4376)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23288A #8A8523

analogous

#235C8A #23288A #52238A

triadic

#23288A #8A2328 #288A23

tetradic

#23288A #8A235C #8A8523 #238A52

square

#23288A #8A235C #8A8523 #238A52

split-complementary

#23288A #8A5223 #5C8A23

monochromatic

#0A0C28 #171A59 #23288A #2F36BB #545AD4

Accessibility & contrast

On white

12.06

#23288A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#23288A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23288A

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23288A	#FFFFFF	#000000	##FFFFFF
##23288A	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8D

Deuteranopia (green-blind)

#003188

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #23288a;
/* rgb */ color: rgb(35, 40, 138);
/* oklch */ color: oklch(34.7% 0.159 272.4);

Tailwind

colors: {
  custom: {
    50: '#6f62ad',
    500: '#23288a',
    950: '#000000',
  },
}

SCSS

$custom: #23288a;
$custom-light: #6f62ad;
$custom-dark: #000000;

JSON

{
  "hex": "#23288a",
  "rgb": {
    "r": 35,
    "g": 40,
    "b": 138
  },
  "hsl": {
    "h": 237.087,
    "s": 59.538,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34705,
    "c": 0.15876,
    "h": 272.4
  },
  "luminance": 0.0371
}

Semantic roles & 50–950 ramp

primary

#23288A

secondary

#B7B351

accent

#DB45E3

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #23288A

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

Preview Lab → · Contrast checker → · Palette generator →