#313587#313587

#313587 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.7% C 0.135 H 275.7°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#313587
RGB	rgb(49, 53, 135)
HSL	hsl(237, 47%, 36%)
HSV	hsv(237, 64%, 53%)
CMYK	cmyk(63.7%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(26.59, 25.14, -46.56)
CIE-LCH	lch(26.59, 52.91, 298.36°)
OKLab	oklab(37.72% 0.0135 -0.1339)
OKLCH	oklch(37.72% 0.135 275.7)
XYZ	xyz(6.9115, 4.9479, 23.5078)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313587 #878331

analogous

#316087 #313587 #583187

triadic

#313587 #873135 #358731

tetradic

#313587 #873160 #878331 #318758

square

#313587 #873160 #878331 #318758

split-complementary

#313587 #875831 #608731

monochromatic

#10122D #21235A #313587 #4147B4 #6A6EC9

Accessibility & contrast

On white

10.55

#313587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#313587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313587

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313587	#FFFFFF	#000000	##FFFFFF
##313587	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438A

Deuteranopia (green-blind)

#003B85

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313587;
/* rgb */ color: rgb(49, 53, 135);
/* oklch */ color: oklch(37.7% 0.135 275.7);

Tailwind

colors: {
  custom: {
    50: '#736cab',
    500: '#313587',
    950: '#000000',
  },
}

SCSS

$custom: #313587;
$custom-light: #736cab;
$custom-dark: #000000;

JSON

{
  "hex": "#313587",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 237.209,
    "s": 46.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37718,
    "c": 0.13456,
    "h": 275.7
  },
  "luminance": 0.04948
}

Semantic roles & 50–950 ramp

primary

#313587

secondary

#B0AD64

accent

#D051D6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313587

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

Preview Lab → · Contrast checker → · Palette generator →