#23359B#23359B

#23359B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.166 H 269.0°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#23359B
RGB	rgb(35, 53, 155)
HSL	hsl(231, 63%, 37%)
HSV	hsv(231, 77%, 61%)
CMYK	cmyk(77.4%, 65.8%, 0%, 39.2%)
CIE-LAB	lab(27.49, 30.58, -57.44)
CIE-LCH	lch(27.49, 65.07, 298.03°)
OKLab	oklab(38.7% -0.0028 -0.1662)
OKLCH	oklch(38.7% 0.166 269)
XYZ	xyz(7.8806, 5.2692, 31.6057)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23359B #9B8923

analogous

#23719B #23359B #4D239B

triadic

#23359B #9B2335 #359B23

tetradic

#23359B #9B2371 #9B8923 #239B4D

square

#23359B #9B2371 #9B8923 #239B4D

split-complementary

#23359B #9B4D23 #719B23

monochromatic

#0C1337 #182469 #23359B #2E46CD #5E71DB

Accessibility & contrast

On white

10.22

#23359B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#23359B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23359B

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23359B	#FFFFFF	#000000	##FFFFFF
##23359B	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479E

Deuteranopia (green-blind)

#003B99

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #23359b;
/* rgb */ color: rgb(35, 53, 155);
/* oklch */ color: oklch(38.7% 0.166 269.0);

Tailwind

colors: {
  custom: {
    50: '#726cb9',
    500: '#23359b',
    950: '#000000',
  },
}

SCSS

$custom: #23359b;
$custom-light: #726cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#23359b",
  "rgb": {
    "r": 35,
    "g": 53,
    "b": 155
  },
  "hsl": {
    "h": 231,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.387,
    "c": 0.16619,
    "h": 269
  },
  "luminance": 0.0527
}

Semantic roles & 50–950 ramp

primary

#23359B

secondary

#BFB05A

accent

#CE42E6

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #23359B

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

Preview Lab → · Contrast checker → · Palette generator →