#231778#231778

#231778 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.153 H 277.5°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#231778
RGB	rgb(35, 23, 120)
HSL	hsl(247, 68%, 28%)
HSV	hsv(247, 81%, 47%)
CMYK	cmyk(70.8%, 80.8%, 0%, 52.9%)
CIE-LAB	lab(17.11, 36.65, -52.64)
CIE-LCH	lch(17.11, 64.15, 304.85°)
OKLab	oklab(30.16% 0.02 -0.1521)
OKLCH	oklch(30.16% 0.153 277.5)
XYZ	xyz(4.3886, 2.3258, 17.9833)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231778 #6C7817

analogous

#173B78 #231778 #531778

triadic

#231778 #782317 #177823

tetradic

#231778 #78173B #6C7817 #177853

square

#231778 #78173B #6C7817 #177853

split-complementary

#231778 #785317 #3B7817

monochromatic

#07051A #140D45 #231778 #3221AB #4632D8

Accessibility & contrast

On white

14.33

#231778 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#231778 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231778

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231778	#FFFFFF	#000000	##FFFFFF
##231778	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7B

Deuteranopia (green-blind)

#002676

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231778;
/* rgb */ color: rgb(35, 23, 120);
/* oklch */ color: oklch(30.2% 0.153 277.5);

Tailwind

colors: {
  custom: {
    50: '#6c57a0',
    500: '#231778',
    950: '#000000',
  },
}

SCSS

$custom: #231778;
$custom-light: #6c57a0;
$custom-dark: #000000;

JSON

{
  "hex": "#231778",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 120
  },
  "hsl": {
    "h": 247.423,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30161,
    "c": 0.15342,
    "h": 277.5
  },
  "luminance": 0.02326
}

Semantic roles & 50–950 ramp

primary

#231778

secondary

#9FAD3E

accent

#EB3DD5

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231778

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

Preview Lab → · Contrast checker → · Palette generator →