#313657#313657

#313657 is a dark, muted blue. Relative luminance 0.040; OKLCH L 34.4% C 0.058 H 276.3°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#313657
RGB	rgb(49, 54, 87)
HSL	hsl(232, 28%, 27%)
HSV	hsv(232, 44%, 34%)
CMYK	cmyk(43.7%, 37.9%, 0%, 65.9%)
CIE-LAB	lab(23.60, 7.54, -20.60)
CIE-LCH	lch(23.60, 21.94, 290.10°)
OKLab	oklab(34.42% 0.0064 -0.0578)
OKLCH	oklch(34.42% 0.058 276.3)
XYZ	xyz(4.3056, 3.9792, 9.5562)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313657 #575231

analogous

#314957 #313657 #3F3157

triadic

#313657 #573136 #365731

tetradic

#313657 #573149 #575231 #31573F

square

#313657 #573149 #575231 #31573F

split-complementary

#313657 #573F31 #495731

monochromatic

#0B0C14 #1B1E30 #313657 #474E7E #5E67A4

Accessibility & contrast

On white

11.69

#313657 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#313657 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313657

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313657	#FFFFFF	#000000	##FFFFFF
##313657	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3A58

Deuteranopia (green-blind)

#283756

Tritanopia (blue-blind)

#253D42

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #313657;
/* rgb */ color: rgb(49, 54, 87);
/* oklch */ color: oklch(34.4% 0.058 276.3);

Tailwind

colors: {
  custom: {
    50: '#6b6c86',
    500: '#313657',
    950: '#000000',
  },
}

SCSS

$custom: #313657;
$custom-light: #6b6c86;
$custom-dark: #000000;

JSON

{
  "hex": "#313657",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 87
  },
  "hsl": {
    "h": 232.105,
    "s": 27.941,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34419,
    "c": 0.05811,
    "h": 276.3
  },
  "luminance": 0.03979
}

Semantic roles & 50–950 ramp

primary

#313657

secondary

#88825C

accent

#B864C4

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#07070B

muted

#7A7A7C

Preview Lab

Preview with #313657

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

Preview Lab → · Contrast checker → · Palette generator →