#555646
Closest named color: Dark Slate Gray (#2F4F4F). oklch(44.7% 0.025 110.3), rgb(85, 86, 70).
Aa
White text reads best on this color (7.48:1).
About this color
#555646 is a dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.062 away. White text reads best on it, at 7.48:1.
| Hue family | Neutrals |
| Lightness | dark (45%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #555646 |
| RGB | rgb(85, 86, 70) |
| HSL | hsl(64, 10%, 31%) |
| OKLCH | oklch(44.7% 0.025 110.3) |
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 #555646 | 7.48:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #555646 | 2.80:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #555646 text on white | 7.48:1 | AAA | Lc 86.0 | Fine for body text |
| #555646 text on black | 2.80:1 | Fails | Lc -16.0 | Dividers and decoration only |
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 800.
-
Step 50
50
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#D9DAD4
oklch(88.6% 0.008 114.2)
-
Step 300
300
#C1C2B7
oklch(81% 0.015 110.9)
-
Step 400
400
#A1A292
oklch(70.7% 0.023 109.9)
-
Step 500
500
#8A8B77
oklch(63% 0.029 109.5)
-
Step 600
600
#74755F
oklch(55.5% 0.033 109.6)
-
Step 700
700
#61634F
oklch(49.2% 0.031 112.2)
-
Step 800
800 (this color)
#555646
oklch(44.7% 0.025 110.3)
-
Step 900
900
#424337
oklch(37.8% 0.02 111.2)
-
Step 950
950
#272720
oklch(27% 0.013 107.2)
#555646 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) | #595445 | 0.008 |
| Deuteranopia (no green cones) | #595547 | 0.007 |
| Tritanopia (no blue cones) | #575452 | 0.023 |
| Achromatopsia (no color) | #555555 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555646
#555646
oklch(44.7% 0.025 110.3)
- #545262
#545262
oklch(44.6% 0.026 291)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #555646, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.062
- Dark Green Blue #1F6357 ΔE 0.066
- Mud Brown #60460F ΔE 0.066
- Olive Brown #645403 ΔE 0.067
- Green Brown #544E03 ΔE 0.069
- Pine #2B5D34 ΔE 0.070
- Slate #516572 ΔE 0.070
- Army Green #4B5D16 ΔE 0.072
Use #555646 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.