#231773#231773

#231773 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.147 H 278.3°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#231773
RGB	rgb(35, 23, 115)
HSL	hsl(248, 67%, 27%)
HSV	hsv(248, 80%, 45%)
CMYK	cmyk(69.6%, 80%, 0%, 54.9%)
CIE-LAB	lab(16.54, 34.99, -50.36)
CIE-LCH	lch(16.54, 61.33, 304.79°)
OKLab	oklab(29.59% 0.0214 -0.1455)
OKLCH	oklch(29.59% 0.147 278.3)
XYZ	xyz(4.0930, 2.2076, 16.4267)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231773 #677317

analogous

#173973 #231773 #511773

triadic

#231773 #732317 #177323

tetradic

#231773 #731739 #677317 #177351

square

#231773 #731739 #677317 #177351

split-complementary

#231773 #735117 #397317

monochromatic

#08051A #130D40 #231773 #3321A6 #452FD5

Accessibility & contrast

On white

14.57

#231773 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#231773 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231773

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231773	#FFFFFF	#000000	##FFFFFF
##231773	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C76

Deuteranopia (green-blind)

#002571

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231773;
/* rgb */ color: rgb(35, 23, 115);
/* oklch */ color: oklch(29.6% 0.147 278.3);

Tailwind

colors: {
  custom: {
    50: '#6b569c',
    500: '#231773',
    950: '#000000',
  },
}

SCSS

$custom: #231773;
$custom-light: #6b569c;
$custom-dark: #000000;

JSON

{
  "hex": "#231773",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 115
  },
  "hsl": {
    "h": 247.826,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29592,
    "c": 0.14703,
    "h": 278.3
  },
  "luminance": 0.02208
}

Semantic roles & 50–950 ramp

primary

#231773

secondary

#9BA93D

accent

#EA3ED3

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231773

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

Preview Lab → · Contrast checker → · Palette generator →