#633722
Closest named color: Purple Brown (#673A3F). oklch(38.7% 0.071 45.5), rgb(99, 55, 34).
Aa
White text reads best on this color (9.99:1).
About this color
#633722 is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.071 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.042 away. White text reads best on it, at 9.99:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #633722 |
| RGB | rgb(99, 55, 34) |
| HSL | hsl(19, 49%, 26%) |
| OKLCH | oklch(38.7% 0.071 45.5) |
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 #633722 | 9.99:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #633722 | 2.10:1 | Fails | Lc 11.0 | Not readable |
| #633722 text on white | 9.99:1 | AAA | Lc 93.0 | Preferred for body text |
| #633722 text on black | 2.10:1 | Fails | Lc -9.5 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EBD4C9
oklch(88.6% 0.03 47.3)
-
Step 300
300
#DFB7A4
oklch(81% 0.053 46.8)
-
Step 400
400
#CE9074
oklch(70.8% 0.085 45.2)
-
Step 500
500
#BF734F
oklch(63.1% 0.109 45.6)
-
Step 600
600
#AB5A32
oklch(55.6% 0.119 45.5)
-
Step 700
700
#924A25
oklch(49.1% 0.109 45.9)
-
Step 800
800
#773D20
oklch(42.8% 0.091 45.7)
-
Step 900
900 (this color)
#633722
oklch(38.7% 0.071 45.5)
-
Step 950
950
#381F13
oklch(26.9% 0.044 46)
#633722 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) | #433C20 | 0.063 |
| Deuteranopia (no green cones) | #4D4622 | 0.058 |
| Tritanopia (no blue cones) | #6C2F32 | 0.040 |
| Achromatopsia (no color) | #424242 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633722
#633722
oklch(38.7% 0.071 45.5)
- #064C61
#064C61
oklch(38.8% 0.071 225.1)
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 #633722, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.042
- Chestnut #742802 ΔE 0.045
- Mud Brown #60460F ΔE 0.052
- Reddy Brown #6E1005 ΔE 0.074
- Brownish Purple #76424E ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.080
- Rust Brown #8B3103 ΔE 0.081
Use #633722 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.