#634751
Closest named color: Brownish Purple (#76424E). oklch(43.2% 0.041 355.7), rgb(99, 71, 81).
Aa
White text reads best on this color (8.23:1).
About this color
#634751 is a dark, muted red. In OKLCH its lightness is 43%, its chroma 0.041 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.036 away. White text reads best on it, at 8.23:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.55:1 |
| White text | 8.23:1 |
Values
| HEX | #634751 |
| RGB | rgb(99, 71, 81) |
| HSL | hsl(339, 16%, 33%) |
| OKLCH | oklch(43.2% 0.041 355.7) |
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 #634751 | 8.23:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #634751 | 2.55:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #634751 text on white | 8.23:1 | AAA | Lc 88.4 | Fine for body text |
| #634751 text on black | 2.55:1 | Fails | Lc -13.8 | 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 800.
-
Step 50
50
#F7F4F5
oklch(97% 0.003 354.7)
-
Step 100
100
#EEE8EA
oklch(93.6% 0.007 354.8)
-
Step 200
200
#E1D6D9
oklch(88.6% 0.013 358.8)
-
Step 300
300
#CEBBC1
oklch(81% 0.023 356.5)
-
Step 400
400
#B597A1
oklch(70.6% 0.038 356.1)
-
Step 500
500
#A37E8A
oklch(63.2% 0.049 357.3)
-
Step 600
600
#8D6774
oklch(55.7% 0.052 356.6)
-
Step 700
700
#785562
oklch(49.1% 0.05 355.1)
-
Step 800
800 (this color)
#634751
oklch(43.2% 0.041 355.7)
-
Step 900
900
#503B42
oklch(37.8% 0.031 356.9)
-
Step 950
950
#2F2227
oklch(26.9% 0.022 353.7)
#634751 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) | #4A4C51 | 0.044 |
| Deuteranopia (no green cones) | #515050 | 0.040 |
| Tritanopia (no blue cones) | #68464A | 0.014 |
| Achromatopsia (no color) | #4F4F4F | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634751
#634751
oklch(43.2% 0.041 355.7)
- #37584F
#37584F
oklch(43.2% 0.042 175.2)
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 #634751, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.036
- Purple Brown #673A3F ΔE 0.038
- Dusty Grape #545775 ΔE 0.065
- Dark Mauve #874C62 ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.077
- YInMn Blue #415A77 ΔE 0.082
- Dusk #4E5481 ΔE 0.082
- Dark Slate Gray #2F4F4F ΔE 0.083
Use #634751 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.