#51435B
Closest named color: Charcoal Grey (#3C4142). oklch(40.7% 0.043 310.9), rgb(81, 67, 91).
Aa
White text reads best on this color (9.11:1).
About this color
#51435B is a dark, muted purple. In OKLCH its lightness is 41%, its chroma 0.043 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.057 away. White text reads best on it, at 9.11:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #51435B |
| RGB | rgb(81, 67, 91) |
| HSL | hsl(275, 15%, 31%) |
| OKLCH | oklch(40.7% 0.043 310.9) |
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 #51435B | 9.11:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #51435B | 2.30:1 | Fails | Lc 13.0 | Not readable |
| #51435B text on white | 9.11:1 | AAA | Lc 91.0 | Preferred for body text |
| #51435B text on black | 2.30:1 | Fails | Lc -11.4 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE8ED
oklch(93.5% 0.007 312.3)
-
Step 200
200
#DCD7E0
oklch(88.6% 0.013 310.5)
-
Step 300
300
#C6BCCD
oklch(80.9% 0.026 311.7)
-
Step 400
400
#A99AB4
oklch(70.8% 0.041 311)
-
Step 500
500
#9381A1
oklch(63.1% 0.051 310.2)
-
Step 600
600
#7E6A8C
oklch(55.6% 0.057 311.1)
-
Step 700
700
#6A5877
oklch(49% 0.053 310.7)
-
Step 800
800 (this color)
#51435B
oklch(40.7% 0.043 310.9)
-
Step 900
900
#473D4F
oklch(37.7% 0.033 309.9)
-
Step 950
950
#2A242E
oklch(27.1% 0.02 311.8)
#51435B 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) | #3F485C | 0.031 |
| Deuteranopia (no green cones) | #42495A | 0.030 |
| Tritanopia (no blue cones) | #50464B | 0.032 |
| Achromatopsia (no color) | #484848 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51435B
#51435B
oklch(40.7% 0.043 310.9)
- #414E36
#414E36
oklch(40.5% 0.042 131.2)
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 #51435B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.057
- Purple Brown #673A3F ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.060
- Dusty Grape #545775 ΔE 0.065
- Charcoal #264653 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
- Dusk #4E5481 ΔE 0.070
- Brownish Purple #76424E ΔE 0.071
Use #51435B 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.