#311E98#311E98

#311E98 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.183 H 278.8°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#311E98
RGB	rgb(49, 30, 152)
HSL	hsl(249, 67%, 36%)
HSV	hsv(249, 80%, 60%)
CMYK	cmyk(67.8%, 80.3%, 0%, 40.4%)
CIE-LAB	lab(23.16, 44.67, -62.70)
CIE-LCH	lch(23.16, 76.98, 305.47°)
OKLab	oklab(35.75% 0.028 -0.1811)
OKLCH	oklch(35.75% 0.183 278.8)
XYZ	xyz(7.3966, 3.8479, 30.0526)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E98 #85981E

analogous

#1E4898 #311E98 #6E1E98

triadic

#311E98 #98311E #1E9831

tetradic

#311E98 #981E48 #85981E #1E986E

square

#311E98 #981E48 #85981E #1E986E

split-complementary

#311E98 #986E1E #48981E

monochromatic

#100A32 #211465 #311E98 #4128CB #6953DD

Accessibility & contrast

On white

11.87

#311E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#311E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E98

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E98	#FFFFFF	#000000	##FFFFFF
##311E98	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9B

Deuteranopia (green-blind)

#003296

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311e98;
/* rgb */ color: rgb(49, 30, 152);
/* oklch */ color: oklch(35.7% 0.183 278.8);

Tailwind

colors: {
  custom: {
    50: '#795eb8',
    500: '#311e98',
    950: '#000000',
  },
}

SCSS

$custom: #311e98;
$custom-light: #795eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#311e98",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 152
  },
  "hsl": {
    "h": 249.344,
    "s": 67.033,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35749,
    "c": 0.18323,
    "h": 278.8
  },
  "luminance": 0.03849
}

Semantic roles & 50–950 ramp

primary

#311E98

secondary

#AFC051

accent

#EA3ECF

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311E98

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

Preview Lab → · Contrast checker → · Palette generator →