#51404E
Closest named color: Charcoal Grey (#3C4142). oklch(39.5% 0.032 332.3), rgb(81, 64, 78).
Aa
White text reads best on this color (9.57:1).
About this color
#51404E is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.032 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.043 away. White text reads best on it, at 9.57:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #51404E |
| RGB | rgb(81, 64, 78) |
| HSL | hsl(311, 12%, 28%) |
| OKLCH | oklch(39.5% 0.032 332.3) |
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 #51404E | 9.57:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #51404E | 2.19:1 | Fails | Lc 11.8 | Not readable |
| #51404E text on white | 9.57:1 | AAA | Lc 92.2 | Preferred for body text |
| #51404E text on black | 2.19:1 | Fails | Lc -10.2 | 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 900.
-
Step 50
50
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#DFD6DD
oklch(88.5% 0.014 333.1)
-
Step 300
300
#CBBBC8
oklch(80.9% 0.025 332)
-
Step 400
400
#B098AB
oklch(70.7% 0.039 333.1)
-
Step 500
500
#9C7F97
oklch(63.2% 0.049 332.1)
-
Step 600
600
#876881
oklch(55.7% 0.054 333.1)
-
Step 700
700
#72566D
oklch(49% 0.05 332.6)
-
Step 800
800
#5D4759
oklch(42.8% 0.041 332.6)
-
Step 900
900 (this color)
#51404E
oklch(39.5% 0.032 332.3)
-
Step 950
950
#2D232B
oklch(27.1% 0.021 333.1)
#51404E 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) | #40444F | 0.030 |
| Deuteranopia (no green cones) | #44464D | 0.028 |
| Tritanopia (no blue cones) | #534145 | 0.017 |
| Achromatopsia (no color) | #454545 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51404E
#51404E
oklch(39.5% 0.032 332.3)
- #394B3E
#394B3E
oklch(39.3% 0.032 153.4)
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 #51404E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.043
- Purple Brown #673A3F ΔE 0.046
- Onyx #343A40 ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.062
- Charcoal #264653 ΔE 0.064
- Dark Slate Gray #2F4F4F ΔE 0.066
- Brownish Purple #76424E ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.081
Use #51404E 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.