#633D52
Closest named color: Purple Brown (#673A3F). oklch(41.2% 0.061 345.9), rgb(99, 61, 82).
Aa
White text reads best on this color (9.05:1).
About this color
#633D52 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.030 away. White text reads best on it, at 9.05:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #633D52 |
| RGB | rgb(99, 61, 82) |
| HSL | hsl(327, 24%, 31%) |
| OKLCH | oklch(41.2% 0.061 345.9) |
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 #633D52 | 9.05:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #633D52 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #633D52 text on white | 9.05:1 | AAA | Lc 90.7 | Preferred for body text |
| #633D52 text on black | 2.31:1 | Fails | Lc -11.6 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E4D4DC
oklch(88.5% 0.021 345.7)
-
Step 300
300
#D3B8C5
oklch(80.9% 0.035 347.2)
-
Step 400
400
#BC93A8
oklch(70.8% 0.057 346.5)
-
Step 500
500
#AA7893
oklch(63.1% 0.072 345.8)
-
Step 600
600
#95607D
oklch(55.6% 0.079 346)
-
Step 700
700
#7F4F6A
oklch(49.1% 0.074 345.4)
-
Step 800
800 (this color)
#633D52
oklch(41.2% 0.061 345.9)
-
Step 900
900
#543747
oklch(37.6% 0.048 345.4)
-
Step 950
950
#31202A
oklch(26.9% 0.031 343.3)
#633D52 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) | #404553 | 0.064 |
| Deuteranopia (no green cones) | #494B51 | 0.059 |
| Tritanopia (no blue cones) | #683D44 | 0.025 |
| Achromatopsia (no color) | #494949 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633D52
#633D52
oklch(41.2% 0.061 345.9)
- #265543
#265543
oklch(41.1% 0.06 166.1)
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 #633D52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Brownish Purple #76424E ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.078
- Dusty Grape #545775 ΔE 0.081
- Dark Mauve #874C62 ΔE 0.085
- Dusk #4E5481 ΔE 0.091
- Onyx #343A40 ΔE 0.093
- Dark Grey Blue #29465B ΔE 0.094
Use #633D52 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.