#313D4E#313D4E

#313D4E is a dark, muted blue. Relative luminance 0.045; OKLCH L 35.7% C 0.034 H 257.1°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#313D4E
RGB	rgb(49, 61, 78)
HSL	hsl(215, 23%, 25%)
HSV	hsv(215, 37%, 31%)
CMYK	cmyk(37.2%, 21.8%, 0%, 69.4%)
CIE-LAB	lab(25.38, -0.07, -11.91)
CIE-LCH	lch(25.38, 11.91, 269.65°)
OKLab	oklab(35.66% -0.0075 -0.0328)
OKLCH	oklch(35.66% 0.034 257.1)
XYZ	xyz(4.3101, 4.5403, 7.8555)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D4E #4E4231

analogous

#314C4E #313D4E #33314E

triadic

#313D4E #4E313D #3D4E31

tetradic

#313D4E #4E314C #4E4231 #314E33

square

#313D4E #4E314C #4E4231 #314E33

split-complementary

#313D4E #4E3331 #4C4E31

monochromatic

#0C0F13 #192028 #313D4E #495A74 #607899

Accessibility & contrast

On white

11.01

#313D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#313D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D4E

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D4E	#FFFFFF	#000000	##FFFFFF
##313D4E	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373E4F

Deuteranopia (green-blind)

#343B4E

Tritanopia (blue-blind)

#284143

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #313d4e;
/* rgb */ color: rgb(49, 61, 78);
/* oklch */ color: oklch(35.7% 0.034 257.1);

Tailwind

colors: {
  custom: {
    50: '#6a727f',
    500: '#313d4e',
    950: '#000000',
  },
}

SCSS

$custom: #313d4e;
$custom-light: #6a727f;
$custom-dark: #000000;

JSON

{
  "hex": "#313d4e",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 78
  },
  "hsl": {
    "h": 215.172,
    "s": 22.835,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35659,
    "c": 0.0337,
    "h": 257.1
  },
  "luminance": 0.04541
}

Semantic roles & 50–950 ramp

primary

#313D4E

secondary

#7F705C

accent

#9B68BF

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#06080A

muted

#7A7B7C

Preview Lab

Preview with #313D4E

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

Preview Lab → · Contrast checker → · Palette generator →