#313751#313751

#313751 is a dark, muted blue. Relative luminance 0.040; OKLCH L 34.3% C 0.046 H 273.7°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#313751
RGB	rgb(49, 55, 81)
HSL	hsl(229, 25%, 25%)
HSV	hsv(229, 40%, 32%)
CMYK	cmyk(39.5%, 32.1%, 0%, 68.2%)
CIE-LAB	lab(23.60, 4.90, -16.64)
CIE-LCH	lch(23.60, 17.34, 286.42°)
OKLab	oklab(34.32% 0.003 -0.0463)
OKLCH	oklch(34.32% 0.046 273.7)
XYZ	xyz(4.1176, 3.9793, 8.3341)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313751 #514B31

analogous

#314751 #313751 #3B3151

triadic

#313751 #513137 #375131

tetradic

#313751 #513147 #514B31 #31513B

square

#313751 #513147 #514B31 #31513B

split-complementary

#313751 #513B31 #475131

monochromatic

#0C0D13 #1A1D2B #313751 #485177 #5F6B9D

Accessibility & contrast

On white

11.69

#313751 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#313751 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313751

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313751	#FFFFFF	#000000	##FFFFFF
##313751	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)

#2F3A52

Deuteranopia (green-blind)

#2C3750

Tritanopia (blue-blind)

#283C40

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #313751;
/* rgb */ color: rgb(49, 55, 81);
/* oklch */ color: oklch(34.3% 0.046 273.7);

Tailwind

colors: {
  custom: {
    50: '#6a6d82',
    500: '#313751',
    950: '#000000',
  },
}

SCSS

$custom: #313751;
$custom-light: #6a6d82;
$custom-dark: #000000;

JSON

{
  "hex": "#313751",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 81
  },
  "hsl": {
    "h": 228.75,
    "s": 24.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34317,
    "c": 0.04642,
    "h": 273.7
  },
  "luminance": 0.03979
}

Semantic roles & 50–950 ramp

primary

#313751

secondary

#827B5C

accent

#B067C1

background

#F6F6F7

surface

#EBEBEE

border

#C6C6C9

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #313751

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

Preview Lab → · Contrast checker → · Palette generator →