#23187C#23187C

#23187C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.158 H 276.7°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#23187C
RGB	rgb(35, 24, 124)
HSL	hsl(247, 68%, 29%)
HSV	hsv(247, 81%, 49%)
CMYK	cmyk(71.8%, 80.6%, 0%, 51.4%)
CIE-LAB	lab(17.76, 37.43, -54.13)
CIE-LCH	lch(17.76, 65.81, 304.67°)
OKLab	oklab(30.75% 0.0184 -0.1564)
OKLCH	oklch(30.75% 0.158 276.7)
XYZ	xyz(4.6567, 2.4654, 19.2953)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23187C #717C18

analogous

#183F7C #23187C #55187C

triadic

#23187C #7C2318 #187C23

tetradic

#23187C #7C183F #717C18 #187C55

square

#23187C #7C183F #717C18 #187C55

split-complementary

#23187C #7C5518 #3F7C18

monochromatic

#07051A #150E49 #23187C #3122AF #4836D8

Accessibility & contrast

On white

14.06

#23187C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#23187C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23187C

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23187C	#FFFFFF	#000000	##FFFFFF
##23187C	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307F

Deuteranopia (green-blind)

#00277A

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #23187c;
/* rgb */ color: rgb(35, 24, 124);
/* oklch */ color: oklch(30.8% 0.158 276.7);

Tailwind

colors: {
  custom: {
    50: '#6d57a3',
    500: '#23187c',
    950: '#000000',
  },
}

SCSS

$custom: #23187c;
$custom-light: #6d57a3;
$custom-dark: #000000;

JSON

{
  "hex": "#23187c",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 124
  },
  "hsl": {
    "h": 246.6,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30752,
    "c": 0.15751,
    "h": 276.7
  },
  "luminance": 0.02466
}

Semantic roles & 50–950 ramp

primary

#23187C

secondary

#A4B13F

accent

#EA3DD7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #23187C

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

Preview Lab → · Contrast checker → · Palette generator →