#23317F#23317F

#23317F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.3% C 0.132 H 270.4°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#23317F
RGB	rgb(35, 49, 127)
HSL	hsl(231, 57%, 32%)
HSV	hsv(231, 72%, 50%)
CMYK	cmyk(72.4%, 61.4%, 0%, 50.2%)
CIE-LAB	lab(23.95, 22.59, -45.87)
CIE-LCH	lch(23.95, 51.13, 296.22°)
OKLab	oklab(35.32% 0.0008 -0.1323)
OKLCH	oklch(35.32% 0.132 270.4)
XYZ	xyz(5.6209, 4.0857, 20.5670)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23317F #7F7123

analogous

#235F7F #23317F #43237F

triadic

#23317F #7F2331 #317F23

tetradic

#23317F #7F235F #7F7123 #237F43

square

#23317F #7F235F #7F7123 #237F43

split-complementary

#23317F #7F4323 #5F7F23

monochromatic

#090C1F #161E4F #23317F #3044AF #4E62CE

Accessibility & contrast

On white

11.56

#23317F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#23317F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23317F

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23317F	#FFFFFF	#000000	##FFFFFF
##23317F	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D82

Deuteranopia (green-blind)

#00357D

Tritanopia (blue-blind)

#004453

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #23317f;
/* rgb */ color: rgb(35, 49, 127);
/* oklch */ color: oklch(35.3% 0.132 270.4);

Tailwind

colors: {
  custom: {
    50: '#6b68a5',
    500: '#23317f',
    950: '#000000',
  },
}

SCSS

$custom: #23317f;
$custom-light: #6b68a5;
$custom-dark: #000000;

JSON

{
  "hex": "#23317f",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 127
  },
  "hsl": {
    "h": 230.87,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35319,
    "c": 0.13228,
    "h": 270.4
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#23317F

secondary

#B1A24C

accent

#C948E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #23317F

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

Preview Lab → · Contrast checker → · Palette generator →