#31287F#31287F

#31287F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.6% C 0.140 H 280.8°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#31287F
RGB	rgb(49, 40, 127)
HSL	hsl(246, 52%, 33%)
HSV	hsv(246, 69%, 50%)
CMYK	cmyk(61.4%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(22.66, 30.82, -47.93)
CIE-LCH	lch(22.66, 56.99, 302.74°)
OKLab	oklab(34.63% 0.0263 -0.138)
OKLCH	oklch(34.63% 0.14 280.8)
XYZ	xyz(5.8550, 3.7024, 20.4807)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31287F #767F28

analogous

#284A7F #31287F #5C287F

triadic

#31287F #7F3128 #287F31

tetradic

#31287F #7F284A #767F28 #287F5C

square

#31287F #7F284A #767F28 #287F5C

split-complementary

#31287F #7F5C28 #4A7F28

monochromatic

#0D0B22 #1F1950 #31287F #4337AE #6357CA

Accessibility & contrast

On white

12.06

#31287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#31287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31287F

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31287F	#FFFFFF	#000000	##FFFFFF
##31287F	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003982

Deuteranopia (green-blind)

#00337D

Tritanopia (blue-blind)

#003E50

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31287f;
/* rgb */ color: rgb(49, 40, 127);
/* oklch */ color: oklch(34.6% 0.140 280.8);

Tailwind

colors: {
  custom: {
    50: '#7263a5',
    500: '#31287f',
    950: '#000000',
  },
}

SCSS

$custom: #31287f;
$custom-light: #7263a5;
$custom-dark: #000000;

JSON

{
  "hex": "#31287f",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 246.207,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34632,
    "c": 0.14049,
    "h": 280.8
  },
  "luminance": 0.03703
}

Semantic roles & 50–950 ramp

primary

#31287F

secondary

#A6AF54

accent

#DC4CCD

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#09050F

muted

#7B797F

Preview Lab

Preview with #31287F

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

Preview Lab → · Contrast checker → · Palette generator →