#313281#313281

#313281 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.130 H 277.3°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#313281
RGB	rgb(49, 50, 129)
HSL	hsl(239, 45%, 35%)
HSV	hsv(239, 62%, 51%)
CMYK	cmyk(62%, 61.2%, 0%, 49.4%)
CIE-LAB	lab(25.32, 24.99, -44.87)
CIE-LCH	lch(25.32, 51.36, 299.12°)
OKLab	oklab(36.63% 0.0165 -0.1289)
OKLCH	oklch(36.63% 0.13 277.3)
XYZ	xyz(6.3684, 4.5187, 21.3012)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313281 #818031

analogous

#315A81 #313281 #583181

triadic

#313281 #813132 #328131

tetradic

#313281 #81315A #818031 #318158

square

#313281 #81315A #818031 #318158

split-complementary

#313281 #815831 #5A8131

monochromatic

#0F1028 #202155 #313281 #4243AD #6768C5

Accessibility & contrast

On white

11.03

#313281 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#313281 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313281

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313281	#FFFFFF	#000000	##FFFFFF
##313281	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F84

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #313281;
/* rgb */ color: rgb(49, 50, 129);
/* oklch */ color: oklch(36.6% 0.130 277.3);

Tailwind

colors: {
  custom: {
    50: '#726aa6',
    500: '#313281',
    950: '#000000',
  },
}

SCSS

$custom: #313281;
$custom-light: #726aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#313281",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 129
  },
  "hsl": {
    "h": 239.25,
    "s": 44.944,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36627,
    "c": 0.12999,
    "h": 277.3
  },
  "luminance": 0.04519
}

Semantic roles & 50–950 ramp

primary

#313281

secondary

#ADAC61

accent

#D353D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #313281

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

Preview Lab → · Contrast checker → · Palette generator →