#515142
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43% 0.024 107.4), rgb(81, 81, 66).
Aa
White text reads best on this color (8.05:1).
About this color
#515142 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.052 away. White text reads best on it, at 8.05:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.60:1 |
| White text | 8.05:1 |
Values
| HEX | #515142 |
| RGB | rgb(81, 81, 66) |
| HSL | hsl(60, 10%, 29%) |
| OKLCH | oklch(43% 0.024 107.4) |
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 #515142 | 8.05:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #515142 | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #515142 text on white | 8.05:1 | AAA | Lc 87.9 | Fine for body text |
| #515142 text on black | 2.60:1 | Fails | Lc -14.2 | 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
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#D9D9D4
oklch(88.4% 0.007 106.5)
-
Step 300
300
#C1C1B7
oklch(80.8% 0.014 106.7)
-
Step 400
400
#A2A292
oklch(70.8% 0.023 107)
-
Step 500
500
#8B8B77
oklch(63.1% 0.029 107.2)
-
Step 600
600
#757560
oklch(55.6% 0.031 107.4)
-
Step 700
700
#62624F
oklch(49.1% 0.029 107.4)
-
Step 800
800 (this color)
#515142
oklch(43% 0.024 107.4)
-
Step 900
900
#424237
oklch(37.6% 0.018 107.2)
-
Step 950
950
#272720
oklch(27% 0.013 107.2)
#515142 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) | #545041 | 0.005 |
| Deuteranopia (no green cones) | #545043 | 0.006 |
| Tritanopia (no blue cones) | #534F4D | 0.021 |
| Achromatopsia (no color) | #505050 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515142
#515142
oklch(43% 0.024 107.4)
- #4F4E5D
#4F4E5D
oklch(43.1% 0.025 288.4)
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 #515142, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.052
- Mud Brown #60460F ΔE 0.059
- Green Brown #544E03 ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.065
- Pine #2B5D34 ΔE 0.070
- Olive Brown #645403 ΔE 0.070
- Dark Green Blue #1F6357 ΔE 0.071
- Purple Brown #673A3F ΔE 0.074
Use #515142 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.