#51443F
Closest named color: Charcoal Grey (#3C4142). oklch(39.8% 0.02 42.2), rgb(81, 68, 63).
Aa
White text reads best on this color (9.33:1).
About this color
#51443F is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.038 away. White text reads best on it, at 9.33:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.24:1 |
| White text | 9.33:1 |
Values
| HEX | #51443F |
| RGB | rgb(81, 68, 63) |
| HSL | hsl(17, 12%, 28%) |
| OKLCH | oklch(39.8% 0.02 42.2) |
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 #51443F | 9.33:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #51443F | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #51443F text on white | 9.33:1 | AAA | Lc 91.6 | Preferred for body text |
| #51443F text on black | 2.24:1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#ECE9E8
oklch(93.6% 0.004 39.5)
-
Step 200
200
#DED7D5
oklch(88.4% 0.008 36.6)
-
Step 300
300
#CABEB9
oklch(81% 0.015 44.1)
-
Step 400
400
#AE9C95
oklch(70.6% 0.024 42.5)
-
Step 500
500
#9A847B
oklch(63.1% 0.03 43.5)
-
Step 600
600
#856D64
oklch(55.5% 0.034 41.6)
-
Step 700
700
#705B53
oklch(49% 0.03 41.9)
-
Step 800
800
#5C4B44
oklch(42.8% 0.026 43.6)
-
Step 900
900 (this color)
#51443F
oklch(39.8% 0.02 42.2)
-
Step 950
950
#2C2522
oklch(27.1% 0.012 44.6)
#51443F 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) | #47453F | 0.017 |
| Deuteranopia (no green cones) | #4A483F | 0.017 |
| Tritanopia (no blue cones) | #554243 | 0.013 |
| Achromatopsia (no color) | #474747 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51443F
#51443F
oklch(39.8% 0.02 42.2)
- #3C4A4F
#3C4A4F
oklch(39.9% 0.02 221.5)
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 #51443F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.038
- Purple Brown #673A3F ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.056
- Onyx #343A40 ΔE 0.062
- Mud Brown #60460F ΔE 0.065
- Charcoal #264653 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.071
- Brownish Purple #76424E ΔE 0.075
Use #51443F 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.