#311F94#311F94

#311F94 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.4% C 0.177 H 279.3°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#311F94
RGB	rgb(49, 31, 148)
HSL	hsl(249, 65%, 35%)
HSV	hsv(249, 79%, 58%)
CMYK	cmyk(66.9%, 79.1%, 0%, 42%)
CIE-LAB	lab(22.90, 42.92, -60.67)
CIE-LCH	lch(22.90, 74.31, 305.28°)
OKLab	oklab(35.43% 0.0286 -0.1752)
OKLCH	oklch(35.43% 0.178 279.3)
XYZ	xyz(7.1002, 3.7705, 28.3648)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F94 #82941F

analogous

#1F4794 #311F94 #6C1F94

triadic

#311F94 #94311F #1F9431

tetradic

#311F94 #941F47 #82941F #1F946C

square

#311F94 #941F47 #82941F #1F946C

split-complementary

#311F94 #946C1F #47941F

monochromatic

#0F0A2F #201461 #311F94 #422AC7 #6853DB

Accessibility & contrast

On white

11.97

#311F94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#311F94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F94

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F94	#FFFFFF	#000000	##FFFFFF
##311F94	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B97

Deuteranopia (green-blind)

#003292

Tritanopia (blue-blind)

#004259

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311f94;
/* rgb */ color: rgb(49, 31, 148);
/* oklch */ color: oklch(35.4% 0.177 279.3);

Tailwind

colors: {
  custom: {
    50: '#785eb5',
    500: '#311f94',
    950: '#000000',
  },
}

SCSS

$custom: #311f94;
$custom-light: #785eb5;
$custom-dark: #000000;

JSON

{
  "hex": "#311f94",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 148
  },
  "hsl": {
    "h": 249.231,
    "s": 65.363,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35434,
    "c": 0.1775,
    "h": 279.3
  },
  "luminance": 0.03771
}

Semantic roles & 50–950 ramp

primary

#311F94

secondary

#ADBE51

accent

#E83FCE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311F94

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

Preview Lab → · Contrast checker → · Palette generator →