#311E97#311E97

#311E97 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.182 H 278.9°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#311E97
RGB	rgb(49, 30, 151)
HSL	hsl(249, 67%, 35%)
HSV	hsv(249, 80%, 59%)
CMYK	cmyk(67.5%, 80.1%, 0%, 40.8%)
CIE-LAB	lab(23.05, 44.36, -62.26)
CIE-LCH	lch(23.05, 76.45, 305.47°)
OKLab	oklab(35.64% 0.0283 -0.1798)
OKLCH	oklch(35.64% 0.182 278.9)
XYZ	xyz(7.3150, 3.8153, 29.6231)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E97 #84971E

analogous

#1E4897 #311E97 #6D1E97

triadic

#311E97 #97311E #1E9731

tetradic

#311E97 #971E48 #84971E #1E976D

square

#311E97 #971E48 #84971E #1E976D

split-complementary

#311E97 #976D1E #48971E

monochromatic

#100A31 #201464 #311E97 #4228CA #6853DD

Accessibility & contrast

On white

11.91

#311E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#311E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E97

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E97	#FFFFFF	#000000	##FFFFFF
##311E97	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9A

Deuteranopia (green-blind)

#003295

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311e97;
/* rgb */ color: rgb(49, 30, 151);
/* oklch */ color: oklch(35.6% 0.182 278.9);

Tailwind

colors: {
  custom: {
    50: '#785eb7',
    500: '#311e97',
    950: '#000000',
  },
}

SCSS

$custom: #311e97;
$custom-light: #785eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#311e97",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 151
  },
  "hsl": {
    "h": 249.421,
    "s": 66.851,
    "l": 35.49
  },
  "oklch": {
    "l": 0.35639,
    "c": 0.18203,
    "h": 278.9
  },
  "luminance": 0.03816
}

Semantic roles & 50–950 ramp

primary

#311E97

secondary

#AEC051

accent

#EA3ECF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311E97

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

Preview Lab → · Contrast checker → · Palette generator →