#31278D#31278D

#31278D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.8% C 0.160 H 278.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#31278D
RGB	rgb(49, 39, 141)
HSL	hsl(246, 57%, 35%)
HSV	hsv(246, 72%, 55%)
CMYK	cmyk(65.2%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(23.76, 36.17, -54.91)
CIE-LCH	lch(23.76, 65.76, 303.38°)
OKLab	oklab(35.83% 0.025 -0.1584)
OKLCH	oklch(35.83% 0.16 278.9)
XYZ	xyz(6.7983, 4.0266, 25.6131)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31278D #838D27

analogous

#27508D #31278D #64278D

triadic

#31278D #8D3127 #278D31

tetradic

#31278D #8D2750 #838D27 #278D64

square

#31278D #8D2750 #838D27 #278D64

split-complementary

#31278D #8D6427 #508D27

monochromatic

#100C2D #201A5D #31278D #4234BD #685CD2

Accessibility & contrast

On white

11.63

#31278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#31278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31278D

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31278D	#FFFFFF	#000000	##FFFFFF
##31278D	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00348B

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #31278d;
/* rgb */ color: rgb(49, 39, 141);
/* oklch */ color: oklch(35.8% 0.160 278.9);

Tailwind

colors: {
  custom: {
    50: '#7562af',
    500: '#31278d',
    950: '#000000',
  },
}

SCSS

$custom: #31278d;
$custom-light: #7562af;
$custom-dark: #000000;

JSON

{
  "hex": "#31278d",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 245.882,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35826,
    "c": 0.16039,
    "h": 278.9
  },
  "luminance": 0.04027
}

Semantic roles & 50–950 ramp

primary

#31278D

secondary

#AEB759

accent

#E048D1

background

#F7F5FA

surface

#EEEAF5

border

#C9C6CF

text

#090510

muted

#7B797F

Preview Lab

Preview with #31278D

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

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