#23339B#23339B

#23339B is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.169 H 269.5°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#23339B
RGB	rgb(35, 51, 155)
HSL	hsl(232, 63%, 37%)
HSV	hsv(232, 77%, 61%)
CMYK	cmyk(77.4%, 67.1%, 0%, 39.2%)
CIE-LAB	lab(26.99, 31.89, -58.26)
CIE-LCH	lch(26.99, 66.42, 298.70°)
OKLab	oklab(38.34% -0.0016 -0.1686)
OKLCH	oklch(38.34% 0.169 269.5)
XYZ	xyz(7.7913, 5.0907, 31.5760)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23339B #9B8B23

analogous

#236F9B #23339B #4F239B

triadic

#23339B #9B2333 #339B23

tetradic

#23339B #9B236F #9B8B23 #239B4F

square

#23339B #9B236F #9B8B23 #239B4F

split-complementary

#23339B #9B4F23 #6F9B23

monochromatic

#0C1237 #182369 #23339B #2E43CD #5E6EDB

Accessibility & contrast

On white

10.40

#23339B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#23339B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23339B

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23339B	#FFFFFF	#000000	##FFFFFF
##23339B	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #23339b;
/* rgb */ color: rgb(35, 51, 155);
/* oklch */ color: oklch(38.3% 0.169 269.5);

Tailwind

colors: {
  custom: {
    50: '#726ab9',
    500: '#23339b',
    950: '#000000',
  },
}

SCSS

$custom: #23339b;
$custom-light: #726ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#23339b",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 155
  },
  "hsl": {
    "h": 232,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38336,
    "c": 0.16858,
    "h": 269.5
  },
  "luminance": 0.05092
}

Semantic roles & 50–950 ramp

primary

#23339B

secondary

#BFB25A

accent

#D042E6

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #23339B

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

Preview Lab → · Contrast checker → · Palette generator →