#23309D#23309D

#23309D is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.0% C 0.175 H 270.0°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#23309D
RGB	rgb(35, 48, 157)
HSL	hsl(234, 64%, 38%)
HSV	hsv(234, 78%, 62%)
CMYK	cmyk(77.7%, 69.4%, 0%, 38.4%)
CIE-LAB	lab(26.46, 34.57, -60.35)
CIE-LCH	lch(26.46, 69.55, 299.81°)
OKLab	oklab(38.01% -0.0001 -0.1747)
OKLCH	oklch(38.01% 0.175 270)
XYZ	xyz(7.8338, 4.9047, 32.4256)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23309D #9D9023

analogous

#236D9D #23309D #53239D

triadic

#23309D #9D2330 #309D23

tetradic

#23309D #9D236D #9D9023 #239D53

square

#23309D #9D236D #9D9023 #239D53

split-complementary

#23309D #9D5323 #6D9D23

monochromatic

#0D1139 #18216B #23309D #2E3FCF #5F6CDB

Accessibility & contrast

On white

10.60

#23309D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#23309D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23309D

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23309D	#FFFFFF	#000000	##FFFFFF
##23309D	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A0

Deuteranopia (green-blind)

#00399B

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #23309d;
/* rgb */ color: rgb(35, 48, 157);
/* oklch */ color: oklch(38.0% 0.175 270.0);

Tailwind

colors: {
  custom: {
    50: '#7368bb',
    500: '#23309d',
    950: '#000000',
  },
}

SCSS

$custom: #23309d;
$custom-light: #7368bb;
$custom-dark: #000000;

JSON

{
  "hex": "#23309d",
  "rgb": {
    "r": 35,
    "g": 48,
    "b": 157
  },
  "hsl": {
    "h": 233.607,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38009,
    "c": 0.17469,
    "h": 270
  },
  "luminance": 0.04906
}

Semantic roles & 50–950 ramp

primary

#23309D

secondary

#C0B55C

accent

#D541E7

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #23309D

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

Preview Lab → · Contrast checker → · Palette generator →