#313A4E#313A4E

#313A4E is a dark, muted blue. Relative luminance 0.042; OKLCH L 34.9% C 0.037 H 265.7°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#313A4E
RGB	rgb(49, 58, 78)
HSL	hsl(221, 23%, 25%)
HSV	hsv(221, 37%, 31%)
CMYK	cmyk(37.2%, 25.6%, 0%, 69.4%)
CIE-LAB	lab(24.41, 1.93, -13.40)
CIE-LCH	lch(24.41, 13.53, 278.19°)
OKLab	oklab(34.9% -0.0028 -0.0371)
OKLCH	oklch(34.9% 0.037 265.7)
XYZ	xyz(4.1544, 4.2290, 7.8036)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A4E #4E4531

analogous

#31494E #313A4E #36314E

triadic

#313A4E #4E313A #3A4E31

tetradic

#313A4E #4E3149 #4E4531 #314E36

square

#313A4E #4E3149 #4E4531 #314E36

split-complementary

#313A4E #4E3631 #494E31

monochromatic

#0C0E13 #191E28 #313A4E #495674 #607299

Accessibility & contrast

On white

11.38

#313A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#313A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A4E

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A4E	#FFFFFF	#000000	##FFFFFF
##313A4E	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4F

Deuteranopia (green-blind)

#31394E

Tritanopia (blue-blind)

#293E41

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #313a4e;
/* rgb */ color: rgb(49, 58, 78);
/* oklch */ color: oklch(34.9% 0.037 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a707f',
    500: '#313a4e',
    950: '#000000',
  },
}

SCSS

$custom: #313a4e;
$custom-light: #6a707f;
$custom-dark: #000000;

JSON

{
  "hex": "#313a4e",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 78
  },
  "hsl": {
    "h": 221.379,
    "s": 22.835,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34901,
    "c": 0.03716,
    "h": 265.7
  },
  "luminance": 0.04229
}

Semantic roles & 50–950 ramp

primary

#313A4E

secondary

#7F745C

accent

#A468BF

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #313A4E

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

Preview Lab → · Contrast checker → · Palette generator →