#31306F#31306F

#31306F is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.8% C 0.106 H 280.0°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#31306F
RGB	rgb(49, 48, 111)
HSL	hsl(241, 40%, 31%)
HSV	hsv(241, 57%, 44%)
CMYK	cmyk(55.9%, 56.8%, 0%, 56.5%)
CIE-LAB	lab(23.39, 19.95, -36.56)
CIE-LCH	lch(23.39, 41.65, 298.61°)
OKLab	oklab(34.75% 0.0185 -0.1045)
OKLCH	oklch(34.75% 0.106 280)
XYZ	xyz(5.1919, 3.9143, 15.5178)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31306F #6E6F30

analogous

#304E6F #31306F #50306F

triadic

#31306F #6F3130 #306F31

tetradic

#31306F #6F304E #6E6F30 #306F50

square

#31306F #6F304E #6E6F30 #306F50

split-complementary

#31306F #6F5030 #4E6F30

monochromatic

#0B0B1A #1E1E44 #31306F #44429A #615FBA

Accessibility & contrast

On white

11.78

#31306F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#31306F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31306F

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31306F	#FFFFFF	#000000	##FFFFFF
##31306F	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3A71

Deuteranopia (green-blind)

#02356E

Tritanopia (blue-blind)

#163E4A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #31306f;
/* rgb */ color: rgb(49, 48, 111);
/* oklch */ color: oklch(34.8% 0.106 280.0);

Tailwind

colors: {
  custom: {
    50: '#6f6899',
    500: '#31306f',
    950: '#000000',
  },
}

SCSS

$custom: #31306f;
$custom-light: #6f6899;
$custom-dark: #000000;

JSON

{
  "hex": "#31306f",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 111
  },
  "hsl": {
    "h": 240.952,
    "s": 39.623,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34751,
    "c": 0.10616,
    "h": 280
  },
  "luminance": 0.03915
}

Semantic roles & 50–950 ramp

primary

#31306F

secondary

#9FA05B

accent

#D058CE

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #31306F

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

Preview Lab → · Contrast checker → · Palette generator →