#313371#313371

#313371 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.5% C 0.105 H 278.2°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#313371
RGB	rgb(49, 51, 113)
HSL	hsl(238, 40%, 32%)
HSV	hsv(238, 57%, 44%)
CMYK	cmyk(56.6%, 54.9%, 0%, 55.7%)
CIE-LAB	lab(24.36, 18.60, -36.27)
CIE-LCH	lch(24.36, 40.76, 297.15°)
OKLab	oklab(35.53% 0.015 -0.1036)
OKLCH	oklch(35.53% 0.105 278.2)
XYZ	xyz(5.4301, 4.2125, 16.1465)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313371 #716F31

analogous

#315371 #313371 #4F3171

triadic

#313371 #713133 #337131

tetradic

#313371 #713153 #716F31 #31714F

square

#313371 #713153 #716F31 #31714F

split-complementary

#313371 #714F31 #537131

monochromatic

#0C0C1C #1E2046 #313371 #44469C #6264BB

Accessibility & contrast

On white

11.40

#313371 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#313371 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313371

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313371	#FFFFFF	#000000	##FFFFFF
##313371	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113D73

Deuteranopia (green-blind)

#073770

Tritanopia (blue-blind)

#13414C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #313371;
/* rgb */ color: rgb(49, 51, 113);
/* oklch */ color: oklch(35.5% 0.105 278.2);

Tailwind

colors: {
  custom: {
    50: '#6f6a9a',
    500: '#313371',
    950: '#000000',
  },
}

SCSS

$custom: #313371;
$custom-light: #6f6a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#313371",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 113
  },
  "hsl": {
    "h": 238.125,
    "s": 39.506,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35528,
    "c": 0.10473,
    "h": 278.2
  },
  "luminance": 0.04213
}

Semantic roles & 50–950 ramp

primary

#313371

secondary

#A2A05C

accent

#CC58CF

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #313371

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

Preview Lab → · Contrast checker → · Palette generator →