#313191#313191

#313191 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.9% C 0.154 H 276.2°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#313191
RGB	rgb(49, 49, 145)
HSL	hsl(240, 49%, 38%)
HSV	hsv(240, 66%, 57%)
CMYK	cmyk(66.2%, 66.2%, 0%, 43.1%)
CIE-LAB	lab(26.43, 31.33, -53.01)
CIE-LCH	lch(26.43, 61.58, 300.58°)
OKLab	oklab(37.87% 0.0165 -0.1529)
OKLCH	oklch(37.87% 0.154 276.2)
XYZ	xyz(7.4741, 4.8933, 27.3332)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313191 #919131

analogous

#316191 #313191 #613191

triadic

#313191 #913131 #319131

tetradic

#313191 #913161 #919131 #319161

square

#313191 #913161 #919131 #319161

split-complementary

#313191 #916131 #619131

monochromatic

#121236 #222263 #313191 #4141BF #6E6ECE

Accessibility & contrast

On white

10.61

#313191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#313191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313191

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313191	#FFFFFF	#000000	##FFFFFF
##313191	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004394

Deuteranopia (green-blind)

#003A8F

Tritanopia (blue-blind)

#004A5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313191;
/* rgb */ color: rgb(49, 49, 145);
/* oklch */ color: oklch(37.9% 0.154 276.2);

Tailwind

colors: {
  custom: {
    50: '#7569b2',
    500: '#313191',
    950: '#000000',
  },
}

SCSS

$custom: #313191;
$custom-light: #7569b2;
$custom-dark: #000000;

JSON

{
  "hex": "#313191",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 145
  },
  "hsl": {
    "h": 240,
    "s": 49.485,
    "l": 38.039
  },
  "oklch": {
    "l": 0.37868,
    "c": 0.15376,
    "h": 276.2
  },
  "luminance": 0.04894
}

Semantic roles & 50–950 ramp

primary

#313191

secondary

#B6B668

accent

#D94FD9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #313191

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

Preview Lab → · Contrast checker → · Palette generator →