#23178D#23178D

#23178D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.179 H 274.5°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#23178D
RGB	rgb(35, 23, 141)
HSL	hsl(246, 72%, 32%)
HSV	hsv(246, 84%, 55%)
CMYK	cmyk(75.2%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(19.61, 43.43, -61.80)
CIE-LCH	lch(19.61, 75.53, 305.10°)
OKLab	oklab(32.63% 0.0141 -0.1787)
OKLCH	oklch(32.63% 0.179 274.5)
XYZ	xyz(5.8057, 2.8926, 25.4465)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23178D #818D17

analogous

#17468D #23178D #5E178D

triadic

#23178D #8D2317 #178D23

tetradic

#23178D #8D1746 #818D17 #178D5E

square

#23178D #8D1746 #818D17 #178D5E

split-complementary

#23178D #8D5E17 #468D17

monochromatic

#090624 #160E58 #23178D #3020C2 #4F3FE0

Accessibility & contrast

On white

13.30

#23178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#23178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23178D

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23178D	#FFFFFF	#000000	##FFFFFF
##23178D	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003590

Deuteranopia (green-blind)

#002A8B

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #23178d;
/* rgb */ color: rgb(35, 23, 141);
/* oklch */ color: oklch(32.6% 0.179 274.5);

Tailwind

colors: {
  custom: {
    50: '#7158b0',
    500: '#23178d',
    950: '#000000',
  },
}

SCSS

$custom: #23178d;
$custom-light: #7158b0;
$custom-dark: #000000;

JSON

{
  "hex": "#23178d",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 246.102,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32627,
    "c": 0.17925,
    "h": 274.5
  },
  "luminance": 0.02893
}

Semantic roles & 50–950 ramp

primary

#23178D

secondary

#B3C040

accent

#EF39DC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #23178D

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

Preview Lab → · Contrast checker → · Palette generator →