#313131

Closest named color: Gunmetal (#293241). oklch(31.3% 0 0), rgb(49, 49, 49).

White text reads best on this color (13.00:1).

About this color

#313131 is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.000. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.030 away. White text reads best on it, at 13.00:1.

Hue family	Neutrals
Lightness	dark (31%)
Chroma	close to neutral grey (0.000)
Temperature	neutral
Nearest name	Gunmetal (#293241)
Black text	1.61:1
White text	13.00:1

Values

HEX	#313131
RGB	rgb(49, 49, 49)
HSL	hsl(0, 0%, 19%)
OKLCH	oklch(31.3% 0 0)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

Pair	WCAG 2	Result	APCA	APCA guidance
White text on #313131	13.00:1	AAA	Lc -102.5	Preferred for body text
Black text on #313131	1.61:1	Fails	Lc 0.0	Not readable
#313131 text on white	13.00:1	AAA	Lc 99.3	Preferred for body text
#313131 text on black	1.61:1	Fails	Lc 0.0	Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.

Step 50
50

#F5F5F5

oklch(97% 0 0)
Step 100
100

#EAEAEA

oklch(93.7% 0 0)
Step 200
200

#D9D9D9

oklch(88.5% 0 0)
Step 300
300

#C0C0C0

oklch(80.8% 0 0)
Step 400
400

#A0A0A0

oklch(70.6% 0 0)
Step 500
500

#898989

oklch(63% 0 0)
Step 600
600

#737373

oklch(55.6% 0 0)
Step 700
700

#616161

oklch(49.3% 0 0)
Step 800
800

#4F4F4F

oklch(42.8% 0 0)
Step 900
900

#414141

oklch(37.5% 0 0)
Step 950
950 (this color)

#313131

oklch(31.3% 0 0)

Export this scale for Tailwind in the Tailwind colors tool

#313131 with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

Vision	Seen as	Shift (ΔE)
Protanopia (no red cones)	#313131	0.000
Deuteranopia (no green cones)	#313131	0.000
Tritanopia (no blue cones)	#313131	0.000
Achromatopsia (no color)	#313131	0.000

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.

Palettes and gradients that use #313131

These curated palettes and gradients contain exactly #313131. Open one to see the full color scheme around it.

Palettes

Linen Gallery

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #313131 in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.

Build a color system from this color Generate a palette