#634033
Closest named color: Purple Brown (#673A3F). oklch(40.8% 0.054 41.2), rgb(99, 64, 51).
Aa
White text reads best on this color (9.08:1).
About this color
#634033 is a dark, muted brown. In OKLCH its lightness is 41%, its chroma 0.054 and its hue 41°. 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 9.08:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #634033 |
| RGB | rgb(99, 64, 51) |
| HSL | hsl(16, 32%, 29%) |
| OKLCH | oklch(40.8% 0.054 41.2) |
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 #634033 | 9.08:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #634033 | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #634033 text on white | 9.08:1 | AAA | Lc 90.8 | Preferred for body text |
| #634033 text on black | 2.31:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#F0E8E5
oklch(93.6% 0.01 41.9)
-
Step 200
200
#E4D6D0
oklch(88.6% 0.018 44.8)
-
Step 300
300
#D3BAB1
oklch(80.8% 0.031 40.8)
-
Step 400
400
#BD9789
oklch(70.8% 0.05 41.2)
-
Step 500
500
#AC7D6B
oklch(63.2% 0.065 41.9)
-
Step 600
600
#976653
oklch(55.7% 0.07 42)
-
Step 700
700
#805444
oklch(49% 0.064 40.8)
-
Step 800
800 (this color)
#634033
oklch(40.8% 0.054 41.2)
-
Step 900
900
#553A30
oklch(37.7% 0.042 41.2)
-
Step 950
950
#32221C
oklch(27% 0.027 41.4)
#634033 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) | #494432 | 0.048 |
| Deuteranopia (no green cones) | #514B33 | 0.044 |
| Tritanopia (no blue cones) | #6B3A3D | 0.030 |
| Achromatopsia (no color) | #484848 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634033
#634033
oklch(40.8% 0.054 41.2)
- #24515E
#24515E
oklch(40.9% 0.054 219.3)
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 #634033, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Mud Brown #60460F ΔE 0.050
- Brownish Purple #76424E ΔE 0.057
- Chestnut #742802 ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.071
- Milk Chocolate #7F4E1E ΔE 0.077
- Green Brown #544E03 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.083
Use #634033 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.