#633624
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.071 42.2), rgb(99, 54, 36).
Aa
White text reads best on this color (10.07:1).
About this color
#633624 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.071 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.040 away. White text reads best on it, at 10.07:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #633624 |
| RGB | rgb(99, 54, 36) |
| HSL | hsl(17, 47%, 26%) |
| OKLCH | oklch(38.5% 0.071 42.2) |
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 #633624 | 10.07:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #633624 | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #633624 text on white | 10.07:1 | AAA | Lc 93.1 | Preferred for body text |
| #633624 text on black | 2.08:1 | Fails | Lc -9.3 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD3CA
oklch(88.4% 0.03 41.7)
-
Step 300
300
#DFB6A6
oklch(80.8% 0.053 42.4)
-
Step 400
400
#CE8F76
oklch(70.6% 0.085 42.5)
-
Step 500
500
#C07253
oklch(63.1% 0.108 42.2)
-
Step 600
600
#AB5937
oklch(55.5% 0.118 42.4)
-
Step 700
700
#93492A
oklch(49.2% 0.109 42.4)
-
Step 800
800
#773C24
oklch(42.6% 0.09 42.1)
-
Step 900
900 (this color)
#633624
oklch(38.5% 0.071 42.2)
-
Step 950
950
#391F14
oklch(27.1% 0.045 43.4)
#633624 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) | #423C22 | 0.065 |
| Deuteranopia (no green cones) | #4D4623 | 0.061 |
| Tritanopia (no blue cones) | #6C2E32 | 0.038 |
| Achromatopsia (no color) | #424242 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633624
#633624
oklch(38.5% 0.071 42.2)
- #014C5F
#014C5F
oklch(38.6% 0.071 222)
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 #633624, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.040
- Chestnut #742802 ΔE 0.045
- Mud Brown #60460F ΔE 0.057
- Reddy Brown #6E1005 ΔE 0.071
- Brownish Purple #76424E ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.080
- Rust Brown #8B3103 ΔE 0.082
Use #633624 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.