#231777#231777

#231777 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.152 H 277.7°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#231777
RGB	rgb(35, 23, 119)
HSL	hsl(248, 68%, 28%)
HSV	hsv(248, 81%, 47%)
CMYK	cmyk(70.6%, 80.7%, 0%, 53.3%)
CIE-LAB	lab(17.00, 36.32, -52.19)
CIE-LCH	lch(17.00, 63.59, 304.84°)
OKLab	oklab(30.05% 0.0203 -0.1508)
OKLCH	oklch(30.05% 0.152 277.7)
XYZ	xyz(4.3282, 2.3016, 17.6654)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231777 #6B7717

analogous

#173B77 #231777 #531777

triadic

#231777 #772317 #177723

tetradic

#231777 #77173B #6B7717 #177753

square

#231777 #77173B #6B7717 #177753

split-complementary

#231777 #775317 #3B7717

monochromatic

#08051A #140D44 #231777 #3221AA #4631D7

Accessibility & contrast

On white

14.38

#231777 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#231777 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231777

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231777	#FFFFFF	#000000	##FFFFFF
##231777	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7A

Deuteranopia (green-blind)

#002675

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231777;
/* rgb */ color: rgb(35, 23, 119);
/* oklch */ color: oklch(30.0% 0.152 277.7);

Tailwind

colors: {
  custom: {
    50: '#6c579f',
    500: '#231777',
    950: '#000000',
  },
}

SCSS

$custom: #231777;
$custom-light: #6c579f;
$custom-dark: #000000;

JSON

{
  "hex": "#231777",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 119
  },
  "hsl": {
    "h": 247.5,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30047,
    "c": 0.15214,
    "h": 277.7
  },
  "luminance": 0.02302
}

Semantic roles & 50–950 ramp

primary

#231777

secondary

#9EAC3E

accent

#EA3DD5

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030F

muted

#7A787E

Preview Lab

Preview with #231777

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

Preview Lab → · Contrast checker → · Palette generator →