#231899#231899

#231899 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.2% C 0.193 H 273.1°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#231899
RGB	rgb(35, 24, 153)
HSL	hsl(245, 73%, 35%)
HSV	hsv(245, 84%, 60%)
CMYK	cmyk(77.1%, 84.3%, 0%, 40%)
CIE-LAB	lab(21.24, 46.70, -66.52)
CIE-LCH	lch(21.24, 81.28, 305.07°)
OKLab	oklab(34.18% 0.0104 -0.1924)
OKLCH	oklch(34.18% 0.193 273.1)
XYZ	xyz(6.7676, 3.3098, 30.4130)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231899 #8E9918

analogous

#184E99 #231899 #631899

triadic

#231899 #992318 #189923

tetradic

#231899 #99184E #8E9918 #189963

square

#231899 #99184E #8E9918 #189963

split-complementary

#231899 #996318 #4E9918

monochromatic

#0B072F #171064 #231899 #2F20CE #5649E2

Accessibility & contrast

On white

12.63

#231899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#231899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231899

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231899	#FFFFFF	#000000	##FFFFFF
##231899	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00399C

Deuteranopia (green-blind)

#002D97

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #231899;
/* rgb */ color: rgb(35, 24, 153);
/* oklch */ color: oklch(34.2% 0.193 273.1);

Tailwind

colors: {
  custom: {
    50: '#745ab8',
    500: '#231899',
    950: '#000000',
  },
}

SCSS

$custom: #231899;
$custom-light: #745ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#231899",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 153
  },
  "hsl": {
    "h": 245.116,
    "s": 72.881,
    "l": 34.706
  },
  "oklch": {
    "l": 0.34182,
    "c": 0.19269,
    "h": 273.1
  },
  "luminance": 0.03311
}

Semantic roles & 50–950 ramp

primary

#231899

secondary

#B9C449

accent

#F038E0

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231899

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

Preview Lab → · Contrast checker → · Palette generator →