#31237F#31237F

#31237F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.147 H 282.1°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#31237F
RGB	rgb(49, 35, 127)
HSL	hsl(249, 57%, 32%)
HSV	hsv(249, 72%, 50%)
CMYK	cmyk(61.4%, 72.4%, 0%, 50.2%)
CIE-LAB	lab(21.53, 33.91, -49.79)
CIE-LCH	lch(21.53, 60.23, 304.26°)
OKLab	oklab(33.82% 0.0308 -0.1434)
OKLCH	oklch(33.82% 0.147 282.1)
XYZ	xyz(5.6972, 3.3870, 20.4281)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31237F #717F23

analogous

#23437F #31237F #5F237F

triadic

#31237F #7F3123 #237F31

tetradic

#31237F #7F2343 #717F23 #237F5F

square

#31237F #7F2343 #717F23 #237F5F

split-complementary

#31237F #7F5F23 #437F23

monochromatic

#0C091F #1E164F #31237F #4430AF #624ECE

Accessibility & contrast

On white

12.52

#31237F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#31237F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31237F

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31237F	#FFFFFF	#000000	##FFFFFF
##31237F	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003782

Deuteranopia (green-blind)

#00307D

Tritanopia (blue-blind)

#003C4E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #31237f;
/* rgb */ color: rgb(49, 35, 127);
/* oklch */ color: oklch(33.8% 0.147 282.1);

Tailwind

colors: {
  custom: {
    50: '#735fa5',
    500: '#31237f',
    950: '#000000',
  },
}

SCSS

$custom: #31237f;
$custom-light: #735fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#31237f",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 127
  },
  "hsl": {
    "h": 249.13,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33819,
    "c": 0.14669,
    "h": 282.1
  },
  "luminance": 0.03387
}

Semantic roles & 50–950 ramp

primary

#31237F

secondary

#A2B14C

accent

#E048C9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09050F

muted

#7B797F

Preview Lab

Preview with #31237F

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

Preview Lab → · Contrast checker → · Palette generator →