#23188F#23188F

#23188F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.181 H 274.2°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#23188F
RGB	rgb(35, 24, 143)
HSL	hsl(246, 71%, 33%)
HSV	hsv(246, 83%, 56%)
CMYK	cmyk(75.5%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(20.02, 43.58, -62.37)
CIE-LCH	lch(20.02, 76.08, 304.94°)
OKLab	oklab(32.98% 0.0132 -0.1804)
OKLCH	oklch(32.98% 0.181 274.2)
XYZ	xyz(5.9761, 2.9932, 26.2441)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23188F #848F18

analogous

#18498F #23188F #5E188F

triadic

#23188F #8F2318 #188F23

tetradic

#23188F #8F1849 #848F18 #188F5E

square

#23188F #8F1849 #848F18 #188F5E

split-complementary

#23188F #8F5E18 #498F18

monochromatic

#090626 #160F5B #23188F #3021C3 #5142DF

Accessibility & contrast

On white

13.13

#23188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#23188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23188F

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23188F	#FFFFFF	#000000	##FFFFFF
##23188F	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#002B8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #23188f;
/* rgb */ color: rgb(35, 24, 143);
/* oklch */ color: oklch(33.0% 0.181 274.2);

Tailwind

colors: {
  custom: {
    50: '#7259b1',
    500: '#23188f',
    950: '#000000',
  },
}

SCSS

$custom: #23188f;
$custom-light: #7259b1;
$custom-dark: #000000;

JSON

{
  "hex": "#23188f",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 245.546,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3298,
    "c": 0.18085,
    "h": 274.2
  },
  "luminance": 0.02994
}

Semantic roles & 50–950 ramp

primary

#23188F

secondary

#B4C043

accent

#EE3ADD

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #23188F

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

Preview Lab → · Contrast checker → · Palette generator →