#554F43
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43% 0.021 84.6), rgb(85, 79, 67).
Aa
White text reads best on this color (8.12:1).
About this color
#554F43 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.056 away. White text reads best on it, at 8.12:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #554F43 |
| RGB | rgb(85, 79, 67) |
| HSL | hsl(40, 12%, 30%) |
| OKLCH | oklch(43% 0.021 84.6) |
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 #554F43 | 8.12:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #554F43 | 2.58:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #554F43 text on white | 8.12:1 | AAA | Lc 88.1 | Fine for body text |
| #554F43 text on black | 2.58:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE7
oklch(93.7% 0.004 91.4)
-
Step 200
200
#DBD9D4
oklch(88.5% 0.007 88.6)
-
Step 300
300
#C4C0B8
oklch(80.9% 0.012 84.6)
-
Step 400
400
#A6A093
oklch(70.7% 0.02 86.2)
-
Step 500
500
#908979
oklch(63.2% 0.025 87.2)
-
Step 600
600
#7B7262
oklch(55.6% 0.026 82)
-
Step 700
700
#676051
oklch(49.1% 0.025 86)
-
Step 800
800 (this color)
#554F43
oklch(43% 0.021 84.6)
-
Step 900
900
#464138
oklch(37.7% 0.016 82.3)
-
Step 950
950
#292621
oklch(27% 0.01 80.6)
#554F43 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) | #524F42 | 0.005 |
| Deuteranopia (no green cones) | #545043 | 0.003 |
| Tritanopia (no blue cones) | #584D4C | 0.019 |
| Achromatopsia (no color) | #505050 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #554F43
#554F43
oklch(43% 0.021 84.6)
- #4A505B
#4A505B
oklch(43% 0.02 262.7)
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 #554F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.056
- Mud Brown #60460F ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.064
- Purple Brown #673A3F ΔE 0.065
- Green Brown #544E03 ΔE 0.069
- Olive Brown #645403 ΔE 0.073
- Brownish Purple #76424E ΔE 0.074
- Dusty Grape #545775 ΔE 0.078
Use #554F43 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.