#313187#313187

#313187 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.0% C 0.140 H 277.1°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#313187
RGB	rgb(49, 49, 135)
HSL	hsl(240, 47%, 36%)
HSV	hsv(240, 64%, 53%)
CMYK	cmyk(63.7%, 63.7%, 0%, 47.1%)
CIE-LAB	lab(25.56, 27.79, -48.23)
CIE-LCH	lch(25.56, 55.66, 299.95°)
OKLab	oklab(36.96% 0.0173 -0.1388)
OKLCH	oklch(36.96% 0.14 277.1)
XYZ	xyz(6.7367, 4.5983, 23.4495)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313187 #878731

analogous

#315C87 #313187 #5C3187

triadic

#313187 #873131 #318731

tetradic

#313187 #87315C #878731 #31875C

square

#313187 #87315C #878731 #31875C

split-complementary

#313187 #875C31 #5C8731

monochromatic

#10102D #21215A #313187 #4141B4 #6A6AC9

Accessibility & contrast

On white

10.94

#313187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#313187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313187

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313187	#FFFFFF	#000000	##FFFFFF
##313187	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #313187;
/* rgb */ color: rgb(49, 49, 135);
/* oklch */ color: oklch(37.0% 0.140 277.1);

Tailwind

colors: {
  custom: {
    50: '#7369ab',
    500: '#313187',
    950: '#000000',
  },
}

SCSS

$custom: #313187;
$custom-light: #7369ab;
$custom-dark: #000000;

JSON

{
  "hex": "#313187",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 135
  },
  "hsl": {
    "h": 240,
    "s": 46.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36961,
    "c": 0.1399,
    "h": 277.1
  },
  "luminance": 0.04599
}

Semantic roles & 50–950 ramp

primary

#313187

secondary

#B0B064

accent

#D651D6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #313187

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

Preview Lab → · Contrast checker → · Palette generator →