#23379B#23379B

#23379B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.164 H 268.6°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#23379B
RGB	rgb(35, 55, 155)
HSL	hsl(230, 63%, 37%)
HSV	hsv(230, 77%, 61%)
CMYK	cmyk(77.4%, 64.5%, 0%, 39.2%)
CIE-LAB	lab(27.99, 29.25, -56.61)
CIE-LCH	lch(27.99, 63.72, 297.32°)
OKLab	oklab(39.07% -0.004 -0.1637)
OKLCH	oklch(39.07% 0.164 268.6)
XYZ	xyz(7.9737, 5.4554, 31.6367)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23379B #9B8723

analogous

#23739B #23379B #4B239B

triadic

#23379B #9B2337 #379B23

tetradic

#23379B #9B2373 #9B8723 #239B4B

square

#23379B #9B2373 #9B8723 #239B4B

split-complementary

#23379B #9B4B23 #739B23

monochromatic

#0C1437 #182569 #23379B #2E49CD #5E73DB

Accessibility & contrast

On white

10.04

#23379B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#23379B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23379B

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23379B	#FFFFFF	#000000	##FFFFFF
##23379B	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489E

Deuteranopia (green-blind)

#003D99

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #23379b;
/* rgb */ color: rgb(35, 55, 155);
/* oklch */ color: oklch(39.1% 0.164 268.6);

Tailwind

colors: {
  custom: {
    50: '#726db9',
    500: '#23379b',
    950: '#000000',
  },
}

SCSS

$custom: #23379b;
$custom-light: #726db9;
$custom-dark: #000000;

JSON

{
  "hex": "#23379b",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 155
  },
  "hsl": {
    "h": 230,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39072,
    "c": 0.16378,
    "h": 268.6
  },
  "luminance": 0.05456
}

Semantic roles & 50–950 ramp

primary

#23379B

secondary

#BFAF5A

accent

#CB42E6

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #23379B

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

Preview Lab → · Contrast checker → · Palette generator →