#31277F#31277F

#31277F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.142 H 281.1°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#31277F
RGB	rgb(49, 39, 127)
HSL	hsl(247, 53%, 33%)
HSV	hsv(247, 69%, 50%)
CMYK	cmyk(61.4%, 69.3%, 0%, 50.2%)
CIE-LAB	lab(22.43, 31.45, -48.31)
CIE-LCH	lch(22.43, 57.65, 303.06°)
OKLab	oklab(34.46% 0.0273 -0.1391)
OKLCH	oklch(34.46% 0.142 281.1)
XYZ	xyz(5.8217, 3.6359, 20.4696)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31277F #757F27

analogous

#27497F #31277F #5D277F

triadic

#31277F #7F3127 #277F31

tetradic

#31277F #7F2749 #757F27 #277F5D

square

#31277F #7F2749 #757F27 #277F5D

split-complementary

#31277F #7F5D27 #497F27

monochromatic

#0D0A21 #1F1950 #31277F #4335AE #6355CB

Accessibility & contrast

On white

12.16

#31277F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#31277F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31277F

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31277F	#FFFFFF	#000000	##FFFFFF
##31277F	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003982

Deuteranopia (green-blind)

#00327D

Tritanopia (blue-blind)

#003E4F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31277f;
/* rgb */ color: rgb(49, 39, 127);
/* oklch */ color: oklch(34.5% 0.142 281.1);

Tailwind

colors: {
  custom: {
    50: '#7362a5',
    500: '#31277f',
    950: '#000000',
  },
}

SCSS

$custom: #31277f;
$custom-light: #7362a5;
$custom-dark: #000000;

JSON

{
  "hex": "#31277f",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 127
  },
  "hsl": {
    "h": 246.818,
    "s": 53.012,
    "l": 32.549
  },
  "oklch": {
    "l": 0.34464,
    "c": 0.14177,
    "h": 281.1
  },
  "luminance": 0.03636
}

Semantic roles & 50–950 ramp

primary

#31277F

secondary

#A5B052

accent

#DC4BCC

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#09050F

muted

#7B797F

Preview Lab

Preview with #31277F

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

Preview Lab → · Contrast checker → · Palette generator →