#23178C#23178C

#23178C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.178 H 274.6°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#23178C
RGB	rgb(35, 23, 140)
HSL	hsl(246, 72%, 32%)
HSV	hsv(246, 84%, 55%)
CMYK	cmyk(75%, 83.6%, 0%, 45.1%)
CIE-LAB	lab(19.49, 43.11, -61.38)
CIE-LCH	lch(19.49, 75.00, 305.09°)
OKLab	oklab(32.51% 0.0144 -0.1775)
OKLCH	oklch(32.51% 0.178 274.6)
XYZ	xyz(5.7316, 2.8630, 25.0564)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23178C #808C17

analogous

#17468C #23178C #5E178C

triadic

#23178C #8C2317 #178C23

tetradic

#23178C #8C1746 #808C17 #178C5E

square

#23178C #8C1746 #808C17 #178C5E

split-complementary

#23178C #8C5E17 #468C17

monochromatic

#090623 #160E57 #23178C #3020C1 #4F3EDF

Accessibility & contrast

On white

13.35

#23178C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#23178C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23178C

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23178C	#FFFFFF	#000000	##FFFFFF
##23178C	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348F

Deuteranopia (green-blind)

#002A8A

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #23178c;
/* rgb */ color: rgb(35, 23, 140);
/* oklch */ color: oklch(32.5% 0.178 274.6);

Tailwind

colors: {
  custom: {
    50: '#7158af',
    500: '#23178c',
    950: '#000000',
  },
}

SCSS

$custom: #23178c;
$custom-light: #7158af;
$custom-dark: #000000;

JSON

{
  "hex": "#23178c",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 140
  },
  "hsl": {
    "h": 246.154,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32507,
    "c": 0.17806,
    "h": 274.6
  },
  "luminance": 0.02864
}

Semantic roles & 50–950 ramp

primary

#23178C

secondary

#B2BF3F

accent

#EF39DC

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #23178C

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

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