#231799#231799

#231799 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.1% C 0.193 H 273.2°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#231799
RGB	rgb(35, 23, 153)
HSL	hsl(246, 74%, 35%)
HSV	hsv(246, 85%, 60%)
CMYK	cmyk(77.1%, 85%, 0%, 40%)
CIE-LAB	lab(21.09, 47.15, -66.78)
CIE-LCH	lch(21.09, 81.75, 305.23°)
OKLab	oklab(34.08% 0.0107 -0.1931)
OKLCH	oklch(34.08% 0.193 273.2)
XYZ	xyz(6.7474, 3.2693, 30.4063)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231799 #8D9917

analogous

#174C99 #231799 #641799

triadic

#231799 #992317 #179923

tetradic

#231799 #99174C #8D9917 #179964

square

#231799 #99174C #8D9917 #179964

split-complementary

#231799 #996417 #4C9917

monochromatic

#0B072F #170F64 #231799 #2F1FCE #5547E3

Accessibility & contrast

On white

12.70

#231799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#231799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231799

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231799	#FFFFFF	#000000	##FFFFFF
##231799	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00399C

Deuteranopia (green-blind)

#002C97

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #231799;
/* rgb */ color: rgb(35, 23, 153);
/* oklch */ color: oklch(34.1% 0.193 273.2);

Tailwind

colors: {
  custom: {
    50: '#7459b8',
    500: '#231799',
    950: '#000000',
  },
}

SCSS

$custom: #231799;
$custom-light: #7459b8;
$custom-dark: #000000;

JSON

{
  "hex": "#231799",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 153
  },
  "hsl": {
    "h": 245.538,
    "s": 73.864,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34077,
    "c": 0.19342,
    "h": 273.2
  },
  "luminance": 0.0327
}

Semantic roles & 50–950 ramp

primary

#231799

secondary

#B9C547

accent

#F137DF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231799

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

Preview Lab → · Contrast checker → · Palette generator →