#51393D
Closest named color: Charcoal Grey (#3C4142). oklch(37.3% 0.035 7.8), rgb(81, 57, 61).
Aa
White text reads best on this color (10.48:1).
About this color
#51393D is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.035 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.041 away. White text reads best on it, at 10.48:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #51393D |
| RGB | rgb(81, 57, 61) |
| HSL | hsl(350, 17%, 27%) |
| OKLCH | oklch(37.3% 0.035 7.8) |
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 #51393D | 10.48:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #51393D | 2.00:1 | Fails | Lc 9.6 | Not readable |
| #51393D text on white | 10.48:1 | AAA | Lc 94.3 | Preferred for body text |
| #51393D text on black | 2.00:1 | Fails | Lc -8.3 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E9
oklch(93.7% 0.008 7.3)
-
Step 200
200
#E2D5D7
oklch(88.4% 0.015 6.7)
-
Step 300
300
#D1BABD
oklch(80.9% 0.027 8.7)
-
Step 400
400
#B9969C
oklch(70.7% 0.043 6.7)
-
Step 500
500
#A77C83
oklch(63.1% 0.054 7.9)
-
Step 600
600
#91656D
oklch(55.5% 0.058 7.1)
-
Step 700
700
#7C545B
oklch(49.1% 0.054 7.7)
-
Step 800
800
#65454A
oklch(42.8% 0.045 8.8)
-
Step 900
900 (this color)
#51393D
oklch(37.3% 0.035 7.8)
-
Step 950
950
#302224
oklch(27% 0.022 9.1)
#51393D 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) | #3D3D3D | 0.037 |
| Deuteranopia (no green cones) | #42413D | 0.035 |
| Tritanopia (no blue cones) | #55373A | 0.009 |
| Achromatopsia (no color) | #3F3F3F | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51393D
#51393D
oklch(37.3% 0.035 7.8)
- #2A4744
#2A4744
oklch(37.4% 0.035 187.5)
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 #51393D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.041
- Purple Brown #673A3F ΔE 0.044
- Onyx #343A40 ΔE 0.051
- Charcoal #264653 ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.076
- Gunmetal #293241 ΔE 0.078
- Dark Slate Gray #2F4F4F ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.081
Use #51393D 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.