#23179F#23179F

#23179F is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.8% C 0.200 H 272.6°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#23179F
RGB	rgb(35, 23, 159)
HSL	hsl(245, 75%, 36%)
HSV	hsv(245, 86%, 62%)
CMYK	cmyk(78%, 85.5%, 0%, 37.6%)
CIE-LAB	lab(21.84, 48.98, -69.20)
CIE-LCH	lch(21.84, 84.78, 305.29°)
OKLab	oklab(34.81% 0.0091 -0.2001)
OKLCH	oklch(34.81% 0.2 272.6)
XYZ	xyz(7.2554, 3.4725, 33.0820)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23179F #939F17

analogous

#174F9F #23179F #67179F

triadic

#23179F #9F2317 #179F23

tetradic

#23179F #9F174F #939F17 #179F67

square

#23179F #9F174F #939F17 #179F67

split-complementary

#23179F #9F6717 #4F9F17

monochromatic

#0B0834 #170F6A #23179F #2F1FD4 #594BE5

Accessibility & contrast

On white

12.39

#23179F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#23179F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23179F

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23179F	#FFFFFF	#000000	##FFFFFF
##23179F	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA3

Deuteranopia (green-blind)

#002E9D

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #23179f;
/* rgb */ color: rgb(35, 23, 159);
/* oklch */ color: oklch(34.8% 0.200 272.6);

Tailwind

colors: {
  custom: {
    50: '#765abd',
    500: '#23179f',
    950: '#000000',
  },
}

SCSS

$custom: #23179f;
$custom-light: #765abd;
$custom-dark: #000000;

JSON

{
  "hex": "#23179f",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 159
  },
  "hsl": {
    "h": 245.294,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.3481,
    "c": 0.20035,
    "h": 272.6
  },
  "luminance": 0.03473
}

Semantic roles & 50–950 ramp

primary

#23179F

secondary

#BCC74B

accent

#F136E1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #23179F

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

Preview Lab → · Contrast checker → · Palette generator →