#313583#313583

#313583 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.129 H 276.0°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#313583
RGB	rgb(49, 53, 131)
HSL	hsl(237, 46%, 35%)
HSV	hsv(237, 63%, 51%)
CMYK	cmyk(62.6%, 59.5%, 0%, 48.6%)
CIE-LAB	lab(26.27, 23.69, -44.58)
CIE-LCH	lch(26.27, 50.48, 297.99°)
OKLab	oklab(37.38% 0.0135 -0.1281)
OKLCH	oklch(37.38% 0.129 276)
XYZ	xyz(6.6351, 4.8374, 22.0524)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313583 #837F31

analogous

#315E83 #313583 #563183

triadic

#313583 #833135 #358331

tetradic

#313583 #83315E #837F31 #318356

square

#313583 #83315E #837F31 #318356

split-complementary

#313583 #835631 #5E8331

monochromatic

#10112A #202356 #313583 #4247B0 #686DC6

Accessibility & contrast

On white

10.67

#313583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#313583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313583

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313583	#FFFFFF	#000000	##FFFFFF
##313583	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313583;
/* rgb */ color: rgb(49, 53, 131);
/* oklch */ color: oklch(37.4% 0.129 276.0);

Tailwind

colors: {
  custom: {
    50: '#726ca8',
    500: '#313583',
    950: '#000000',
  },
}

SCSS

$custom: #313583;
$custom-light: #726ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#313583",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 131
  },
  "hsl": {
    "h": 237.073,
    "s": 45.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37381,
    "c": 0.12878,
    "h": 276
  },
  "luminance": 0.04838
}

Semantic roles & 50–950 ramp

primary

#313583

secondary

#AEAA62

accent

#CF53D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313583

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

Preview Lab → · Contrast checker → · Palette generator →