#313B45#313B45

#313B45 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.022 H 248.5°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#313B45
RGB	rgb(49, 59, 69)
HSL	hsl(210, 17%, 23%)
HSV	hsv(210, 29%, 27%)
CMYK	cmyk(29%, 14.5%, 0%, 72.9%)
CIE-LAB	lab(24.36, -1.42, -7.51)
CIE-LCH	lch(24.36, 7.65, 259.28°)
OKLab	oklab(34.73% -0.0081 -0.0205)
OKLCH	oklch(34.73% 0.022 248.5)
XYZ	xyz(3.9045, 4.2104, 6.2360)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B45 #453B31

analogous

#314545 #313B45 #313145

triadic

#313B45 #45313B #3B4531

tetradic

#313B45 #453145 #453B31 #314531

square

#313B45 #453145 #453B31 #314531

split-complementary

#313B45 #453131 #454531

monochromatic

#0D0F12 #181C21 #313B45 #4A5A69 #64788D

Accessibility & contrast

On white

11.40

#313B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#313B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B45

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B45	#FFFFFF	#000000	##FFFFFF
##313B45	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373B46

Deuteranopia (green-blind)

#353945

Tritanopia (blue-blind)

#2B3D3E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #313b45;
/* rgb */ color: rgb(49, 59, 69);
/* oklch */ color: oklch(34.7% 0.022 248.5);

Tailwind

colors: {
  custom: {
    50: '#697078',
    500: '#313b45',
    950: '#000000',
  },
}

SCSS

$custom: #313b45;
$custom-light: #697078;
$custom-dark: #000000;

JSON

{
  "hex": "#313b45",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 69
  },
  "hsl": {
    "h": 210,
    "s": 16.949,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34728,
    "c": 0.02206,
    "h": 248.5
  },
  "luminance": 0.04211
}

Semantic roles & 50–950 ramp

primary

#313B45

secondary

#75695C

accent

#946EBA

background

#F6F6F7

surface

#EBECED

border

#C6C7C8

text

#060709

muted

#7A7A7B

Preview Lab

Preview with #313B45

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

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