#31279A#31279A

#31279A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.1% C 0.177 H 277.3°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#31279A
RGB	rgb(49, 39, 154)
HSL	hsl(245, 60%, 38%)
HSV	hsv(245, 75%, 60%)
CMYK	cmyk(68.2%, 74.7%, 0%, 39.6%)
CIE-LAB	lab(25.06, 40.49, -60.78)
CIE-LCH	lch(25.06, 73.04, 303.67°)
OKLab	oklab(37.15% 0.0224 -0.1756)
OKLCH	oklch(37.15% 0.177 277.3)
XYZ	xyz(7.8230, 4.4364, 31.0096)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31279A #909A27

analogous

#27579A #31279A #6A279A

triadic

#31279A #9A3127 #279A31

tetradic

#31279A #9A2757 #909A27 #279A6A

square

#31279A #9A2757 #909A27 #279A6A

split-complementary

#31279A #9A6A27 #579A27

monochromatic

#120E38 #211B69 #31279A #4133CB #6E64D8

Accessibility & contrast

On white

11.13

#31279A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#31279A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31279A

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31279A	#FFFFFF	#000000	##FFFFFF
##31279A	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409D

Deuteranopia (green-blind)

#003798

Tritanopia (blue-blind)

#00485E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31279a;
/* rgb */ color: rgb(49, 39, 154);
/* oklch */ color: oklch(37.1% 0.177 277.3);

Tailwind

colors: {
  custom: {
    50: '#7863b9',
    500: '#31279a',
    950: '#000000',
  },
}

SCSS

$custom: #31279a;
$custom-light: #7863b9;
$custom-dark: #000000;

JSON

{
  "hex": "#31279a",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 154
  },
  "hsl": {
    "h": 245.217,
    "s": 59.585,
    "l": 37.843
  },
  "oklch": {
    "l": 0.3715,
    "c": 0.17701,
    "h": 277.3
  },
  "luminance": 0.04437
}

Semantic roles & 50–950 ramp

primary

#31279A

secondary

#B5BD5F

accent

#E345D5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #31279A

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

Preview Lab → · Contrast checker → · Palette generator →