#231F96#231F96

#231F96 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.7% C 0.183 H 272.8°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#231F96
RGB	rgb(35, 31, 150)
HSL	hsl(242, 66%, 35%)
HSV	hsv(242, 79%, 59%)
CMYK	cmyk(76.7%, 79.3%, 0%, 41.2%)
CIE-LAB	lab(22.08, 42.25, -63.28)
CIE-LCH	lch(22.08, 76.09, 303.73°)
OKLab	oklab(34.66% 0.0089 -0.1831)
OKLCH	oklch(34.66% 0.183 272.8)
XYZ	xyz(6.6863, 3.5386, 29.1789)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F96 #92961F

analogous

#1F5696 #231F96 #5E1F96

triadic

#231F96 #96231F #1F9623

tetradic

#231F96 #961F56 #92961F #1F965E

square

#231F96 #961F56 #92961F #1F965E

split-complementary

#231F96 #965E1F #56961F

monochromatic

#0B0A31 #171563 #231F96 #2F29C9 #5854DC

Accessibility & contrast

On white

12.30

#231F96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#231F96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F96

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F96	#FFFFFF	#000000	##FFFFFF
##231F96	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A99

Deuteranopia (green-blind)

#002F94

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231f96;
/* rgb */ color: rgb(35, 31, 150);
/* oklch */ color: oklch(34.7% 0.183 272.8);

Tailwind

colors: {
  custom: {
    50: '#735db6',
    500: '#231f96',
    950: '#000000',
  },
}

SCSS

$custom: #231f96;
$custom-light: #735db6;
$custom-dark: #000000;

JSON

{
  "hex": "#231f96",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 150
  },
  "hsl": {
    "h": 242.017,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34662,
    "c": 0.18334,
    "h": 272.8
  },
  "luminance": 0.03539
}

Semantic roles & 50–950 ramp

primary

#231F96

secondary

#BBBF52

accent

#E93FE3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231F96

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

Preview Lab → · Contrast checker → · Palette generator →