#311CA7#311CA7

#311CA7 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.2% C 0.202 H 276.9°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#311CA7
RGB	rgb(49, 28, 167)
HSL	hsl(249, 71%, 38%)
HSV	hsv(249, 83%, 65%)
CMYK	cmyk(70.7%, 83.2%, 0%, 34.5%)
CIE-LAB	lab(24.55, 50.15, -69.55)
CIE-LCH	lch(24.55, 85.74, 305.79°)
OKLab	oklab(37.21% 0.0244 -0.2009)
OKLCH	oklch(37.21% 0.202 276.9)
XYZ	xyz(8.6547, 4.2727, 36.9203)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311CA7 #92A71C

analogous

#1C4CA7 #311CA7 #761CA7

triadic

#311CA7 #A7311C #1CA731

tetradic

#311CA7 #A71C4C #92A71C #1CA776

square

#311CA7 #A71C4C #92A71C #1CA776

split-complementary

#311CA7 #A7761C #4CA71C

monochromatic

#120A3E #221373 #311CA7 #4126DB #6F5AE3

Accessibility & contrast

On white

11.32

#311CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#311CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311CA7

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311CA7	#FFFFFF	#000000	##FFFFFF
##311CA7	1.00	11.32	1.85	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AB

Deuteranopia (green-blind)

#0034A5

Tritanopia (blue-blind)

#004863

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #311ca7;
/* rgb */ color: rgb(49, 28, 167);
/* oklch */ color: oklch(37.2% 0.202 276.9);

Tailwind

colors: {
  custom: {
    50: '#7c5ec3',
    500: '#311ca7',
    950: '#000000',
  },
}

SCSS

$custom: #311ca7;
$custom-light: #7c5ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#311ca7",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 167
  },
  "hsl": {
    "h": 249.065,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.37214,
    "c": 0.20243,
    "h": 276.9
  },
  "luminance": 0.04273
}

Semantic roles & 50–950 ramp

primary

#311CA7

secondary

#B6C758

accent

#EE3AD3

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #311CA7

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

Preview Lab → · Contrast checker → · Palette generator →