#40484E

Closest named color: Charcoal Grey (#3C4142). oklch(39.7% 0.015 240.3), rgb(64, 72, 78).

White text reads best on this color (9.31:1).

About this color

#40484E is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.027 away. White text reads best on it, at 9.31:1.

Hue family	Neutrals
Lightness	dark (40%)
Chroma	close to neutral grey (0.015)
Temperature	neutral
Nearest name	Charcoal Grey (#3C4142)
Black text	2.25:1
White text	9.31:1

Values

HEX	#40484E
RGB	rgb(64, 72, 78)
HSL	hsl(206, 10%, 28%)
OKLCH	oklch(39.7% 0.015 240.3)

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 #40484E	9.31:1	AAA	Lc -95.8	Preferred for body text
Black text on #40484E	2.25:1	Fails	Lc 12.4	Not readable
#40484E text on white	9.31:1	AAA	Lc 91.5	Preferred for body text
#40484E text on black	2.25:1	Fails	Lc -10.8	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 900.

Step 50
50

#F4F5F6

oklch(97% 0.002 247.8)
Step 100
100

#E8EAEC

oklch(93.6% 0.003 247.9)
Step 200
200

#D6DADD

oklch(88.6% 0.006 239.8)
Step 300
300

#BBC2C7

oklch(81% 0.01 238.5)
Step 400
400

#97A2AB

oklch(70.6% 0.018 242.5)
Step 500
500

#7E8C96

oklch(63.2% 0.022 238.9)
Step 600
600

#677680

oklch(55.7% 0.024 237.1)
Step 700
700

#56636C

oklch(49.2% 0.022 238.2)
Step 800
800

#465158

oklch(42.8% 0.018 235.8)
Step 900
900 (this color)

#40484E

oklch(39.7% 0.015 240.3)
Step 950
950

#23272B

oklch(27% 0.009 248.2)

Export this scale for Tailwind in the Tailwind colors tool

#40484E 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)	#46484E	0.009
Deuteranopia (no green cones)	#44464E	0.008
Tritanopia (no blue cones)	#3C494A	0.011
Achromatopsia (no color)	#474747	0.015

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 with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #40484E, closest first.

Similar named colors

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

Use #40484E 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