#51473C
Closest named color: Charcoal Grey (#3C4142). oklch(40.5% 0.022 69.8), rgb(81, 71, 60).
Aa
White text reads best on this color (9.06:1).
About this color
#51473C is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.044 away. White text reads best on it, at 9.06:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #51473C |
| RGB | rgb(81, 71, 60) |
| HSL | hsl(31, 15%, 28%) |
| OKLCH | oklch(40.5% 0.022 69.8) |
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 #51473C | 9.06:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #51473C | 2.31:1 | Fails | Lc 13.1 | Not readable |
| #51473C text on white | 9.06:1 | AAA | Lc 90.9 | Preferred for body text |
| #51473C text on black | 2.31:1 | Fails | Lc -11.5 | 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
#EBE9E7
oklch(93.5% 0.003 67.8)
-
Step 200
200
#DCD8D4
oklch(88.4% 0.007 67.7)
-
Step 300
300
#C6BFB8
oklch(80.8% 0.013 67.6)
-
Step 400
400
#A99F93
oklch(70.8% 0.021 72.5)
-
Step 500
500
#948778
oklch(63.1% 0.027 71.3)
-
Step 600
600
#7F7161
oklch(55.7% 0.03 70.9)
-
Step 700
700
#6B5E50
oklch(49% 0.027 69.2)
-
Step 800
800 (this color)
#51473C
oklch(40.5% 0.022 69.8)
-
Step 900
900
#484038
oklch(37.7% 0.017 67.3)
-
Step 950
950
#2A2621
oklch(27.1% 0.011 73.5)
#51473C 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) | #4B473B | 0.011 |
| Deuteranopia (no green cones) | #4D4A3C | 0.011 |
| Tritanopia (no blue cones) | #554544 | 0.018 |
| Achromatopsia (no color) | #494949 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51473C
#51473C
oklch(40.5% 0.022 69.8)
- #404A55
#404A55
oklch(40.4% 0.023 250.9)
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 #51473C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.054
- Purple Brown #673A3F ΔE 0.055
- Mud Brown #60460F ΔE 0.056
- Onyx #343A40 ΔE 0.069
- Green Brown #544E03 ΔE 0.070
- Charcoal #264653 ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.076
Use #51473C 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.