#313391#313391

#313391 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.2% C 0.151 H 275.6°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#313391
RGB	rgb(49, 51, 145)
HSL	hsl(239, 49%, 38%)
HSV	hsv(239, 66%, 57%)
CMYK	cmyk(66.2%, 64.8%, 0%, 43.1%)
CIE-LAB	lab(26.92, 30.04, -52.21)
CIE-LCH	lch(26.92, 60.24, 299.91°)
OKLab	oklab(38.22% 0.0148 -0.1505)
OKLCH	oklch(38.22% 0.151 275.6)
XYZ	xyz(7.5596, 5.0643, 27.3617)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313391 #918F31

analogous

#316391 #313391 #5F3191

triadic

#313391 #913133 #339131

tetradic

#313391 #913163 #918F31 #31915F

square

#313391 #913163 #918F31 #31915F

split-complementary

#313391 #915F31 #639131

monochromatic

#121336 #222363 #313391 #4143BF #6E70CE

Accessibility & contrast

On white

10.43

#313391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#313391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313391

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313391	#FFFFFF	#000000	##FFFFFF
##313391	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004494

Deuteranopia (green-blind)

#003B8F

Tritanopia (blue-blind)

#004B5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313391;
/* rgb */ color: rgb(49, 51, 145);
/* oklch */ color: oklch(38.2% 0.151 275.6);

Tailwind

colors: {
  custom: {
    50: '#756bb2',
    500: '#313391',
    950: '#000000',
  },
}

SCSS

$custom: #313391;
$custom-light: #756bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#313391",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 145
  },
  "hsl": {
    "h": 238.75,
    "s": 49.485,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38225,
    "c": 0.15125,
    "h": 275.6
  },
  "luminance": 0.05065
}

Semantic roles & 50–950 ramp

primary

#313391

secondary

#B6B468

accent

#D64FD9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #313391

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

Preview Lab → · Contrast checker → · Palette generator →