#51453E
Closest named color: Charcoal Grey (#3C4142). oklch(40% 0.02 52.1), rgb(81, 69, 62).
Aa
White text reads best on this color (9.24:1).
About this color
#51453E 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 0.040 away. White text reads best on it, at 9.24:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #51453E |
| RGB | rgb(81, 69, 62) |
| HSL | hsl(22, 13%, 28%) |
| OKLCH | oklch(40% 0.02 52.1) |
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 #51453E | 9.24:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #51453E | 2.27:1 | Fails | Lc 12.6 | Not readable |
| #51453E text on white | 9.24:1 | AAA | Lc 91.3 | Preferred for body text |
| #51453E text on black | 2.27:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#ECE9E7
oklch(93.6% 0.004 56.4)
-
Step 200
200
#DED8D4
oklch(88.6% 0.009 56.3)
-
Step 300
300
#C9BEB8
oklch(80.9% 0.015 50.8)
-
Step 400
400
#AD9D93
oklch(70.7% 0.024 54.2)
-
Step 500
500
#998579
oklch(63.1% 0.03 52.9)
-
Step 600
600
#846E62
oklch(55.6% 0.033 50.3)
-
Step 700
700
#705C51
oklch(49.1% 0.031 50.4)
-
Step 800
800
#5B4B42
oklch(42.6% 0.026 51.1)
-
Step 900
900 (this color)
#51453E
oklch(40% 0.02 52.1)
-
Step 950
950
#2C2521
oklch(27.1% 0.013 51.6)
#51453E 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) | #48463E | 0.016 |
| Deuteranopia (no green cones) | #4B483E | 0.013 |
| Tritanopia (no blue cones) | #554343 | 0.014 |
| Achromatopsia (no color) | #474747 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51453E
#51453E
oklch(40% 0.02 52.1)
- #3D4A51
#3D4A51
oklch(40% 0.02 231.5)
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 #51453E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.040
- Purple Brown #673A3F ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.055
- Mud Brown #60460F ΔE 0.061
- Onyx #343A40 ΔE 0.064
- Charcoal #264653 ΔE 0.069
- Dark Grey Blue #29465B ΔE 0.073
- Brownish Purple #76424E ΔE 0.076
Use #51453E 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.