#231779#231779

#231779 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.155 H 277.3°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#231779
RGB	rgb(35, 23, 121)
HSL	hsl(247, 68%, 28%)
HSV	hsv(247, 81%, 47%)
CMYK	cmyk(71.1%, 81%, 0%, 52.5%)
CIE-LAB	lab(17.23, 36.98, -53.09)
CIE-LCH	lch(17.23, 64.70, 304.86°)
OKLab	oklab(30.28% 0.0197 -0.1534)
OKLCH	oklch(30.28% 0.155 277.3)
XYZ	xyz(4.4496, 2.3502, 18.3046)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231779 #6D7917

analogous

#173C79 #231779 #541779

triadic

#231779 #792317 #177923

tetradic

#231779 #79173C #6D7917 #177954

square

#231779 #79173C #6D7917 #177954

split-complementary

#231779 #795417 #3C7917

monochromatic

#07051A #140D46 #231779 #3221AC #4732D8

Accessibility & contrast

On white

14.28

#231779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#231779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231779

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231779	#FFFFFF	#000000	##FFFFFF
##231779	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7C

Deuteranopia (green-blind)

#002677

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231779;
/* rgb */ color: rgb(35, 23, 121);
/* oklch */ color: oklch(30.3% 0.155 277.3);

Tailwind

colors: {
  custom: {
    50: '#6c57a1',
    500: '#231779',
    950: '#000000',
  },
}

SCSS

$custom: #231779;
$custom-light: #6c57a1;
$custom-dark: #000000;

JSON

{
  "hex": "#231779",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 121
  },
  "hsl": {
    "h": 247.347,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30276,
    "c": 0.15468,
    "h": 277.3
  },
  "luminance": 0.02351
}

Semantic roles & 50–950 ramp

primary

#231779

secondary

#A0AE3E

accent

#EB3DD6

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231779

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

Preview Lab → · Contrast checker → · Palette generator →