#313573#313573

#313573 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 36.1% C 0.105 H 277.0°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#313573
RGB	rgb(49, 53, 115)
HSL	hsl(236, 40%, 32%)
HSV	hsv(236, 57%, 45%)
CMYK	cmyk(57.4%, 53.9%, 0%, 54.9%)
CIE-LAB	lab(25.07, 17.94, -36.42)
CIE-LCH	lch(25.07, 40.60, 296.23°)
OKLab	oklab(36.1% 0.0128 -0.1041)
OKLCH	oklch(36.1% 0.105 277)
XYZ	xyz(5.6333, 4.4366, 16.7758)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313573 #736F31

analogous

#315673 #313573 #4E3173

triadic

#313573 #733135 #357331

tetradic

#313573 #733156 #736F31 #31734E

square

#313573 #733156 #736F31 #31734E

split-complementary

#313573 #734E31 #567331

monochromatic

#0C0D1D #1F2148 #313573 #43499E #6268BC

Accessibility & contrast

On white

11.13

#313573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#313573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313573

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313573	#FFFFFF	#000000	##FFFFFF
##313573	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143E75

Deuteranopia (green-blind)

#093972

Tritanopia (blue-blind)

#10434E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #313573;
/* rgb */ color: rgb(49, 53, 115);
/* oklch */ color: oklch(36.1% 0.105 277.0);

Tailwind

colors: {
  custom: {
    50: '#6f6c9c',
    500: '#313573',
    950: '#000000',
  },
}

SCSS

$custom: #313573;
$custom-light: #6f6c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#313573",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 115
  },
  "hsl": {
    "h": 236.364,
    "s": 40.244,
    "l": 32.157
  },
  "oklch": {
    "l": 0.36102,
    "c": 0.10484,
    "h": 277
  },
  "luminance": 0.04437
}

Semantic roles & 50–950 ramp

primary

#313573

secondary

#A49F5C

accent

#C958D0

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #313573

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

Preview Lab → · Contrast checker → · Palette generator →