#23309F#23309F

#23309F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.2% C 0.177 H 269.9°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#23309F
RGB	rgb(35, 48, 159)
HSL	hsl(234, 64%, 38%)
HSV	hsv(234, 78%, 62%)
CMYK	cmyk(78%, 69.8%, 0%, 37.6%)
CIE-LAB	lab(26.66, 35.30, -61.24)
CIE-LCH	lch(26.66, 70.69, 299.96°)
OKLab	oklab(38.21% -0.0003 -0.1773)
OKLCH	oklch(38.21% 0.177 269.9)
XYZ	xyz(8.0060, 4.9735, 33.3322)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23309F #9F9223

analogous

#236E9F #23309F #54239F

triadic

#23309F #9F2330 #309F23

tetradic

#23309F #9F236E #9F9223 #239F54

square

#23309F #9F236E #9F9223 #239F54

split-complementary

#23309F #9F5423 #6E9F23

monochromatic

#0D123B #18216D #23309F #2E3FD1 #606DDC

Accessibility & contrast

On white

10.53

#23309F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#23309F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23309F

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23309F	#FFFFFF	#000000	##FFFFFF
##23309F	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A2

Deuteranopia (green-blind)

#00399D

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23309f;
/* rgb */ color: rgb(35, 48, 159);
/* oklch */ color: oklch(38.2% 0.177 269.9);

Tailwind

colors: {
  custom: {
    50: '#7369bc',
    500: '#23309f',
    950: '#000000',
  },
}

SCSS

$custom: #23309f;
$custom-light: #7369bc;
$custom-dark: #000000;

JSON

{
  "hex": "#23309f",
  "rgb": {
    "r": 35,
    "g": 48,
    "b": 159
  },
  "hsl": {
    "h": 233.71,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38212,
    "c": 0.17729,
    "h": 269.9
  },
  "luminance": 0.04974
}

Semantic roles & 50–950 ramp

primary

#23309F

secondary

#C1B75D

accent

#D641E7

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #23309F

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

Preview Lab → · Contrast checker → · Palette generator →