#633E2F
Closest named color: Purple Brown (#673A3F). oklch(40.3% 0.058 42.8), rgb(99, 62, 47).
Aa
White text reads best on this color (9.28:1).
About this color
#633E2F is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.058 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.032 away. White text reads best on it, at 9.28:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #633E2F |
| RGB | rgb(99, 62, 47) |
| HSL | hsl(17, 36%, 29%) |
| OKLCH | oklch(40.3% 0.058 42.8) |
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 #633E2F | 9.28:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #633E2F | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #633E2F text on white | 9.28:1 | AAA | Lc 91.3 | Preferred for body text |
| #633E2F text on black | 2.26:1 | Fails | Lc -11.1 | 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
#E5D5CF
oklch(88.4% 0.02 41.8)
-
Step 300
300
#D5BAB0
oklch(80.9% 0.034 41.4)
-
Step 400
400
#BF9686
oklch(70.7% 0.055 42.3)
-
Step 500
500
#AE7C68
oklch(63.1% 0.069 42.7)
-
Step 600
600
#996550
oklch(55.7% 0.075 42.8)
-
Step 700
700
#825340
oklch(49% 0.07 42.7)
-
Step 800
800 (this color)
#633E2F
oklch(40.3% 0.058 42.8)
-
Step 900
900
#563A2E
oklch(37.7% 0.045 44.1)
-
Step 950
950
#33221B
oklch(27.1% 0.029 43.3)
#633E2F 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) | #47422E | 0.053 |
| Deuteranopia (no green cones) | #504A2F | 0.048 |
| Tritanopia (no blue cones) | #6B383A | 0.031 |
| Achromatopsia (no color) | #474747 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633E2F
#633E2F
oklch(40.3% 0.058 42.8)
- #1F4F5F
#1F4F5F
oklch(40.2% 0.058 223.1)
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 #633E2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.032
- Mud Brown #60460F ΔE 0.049
- Chestnut #742802 ΔE 0.060
- Brownish Purple #76424E ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.072
- Milk Chocolate #7F4E1E ΔE 0.079
- Green Brown #544E03 ΔE 0.079
- Red Brown #8B2E16 ΔE 0.082
Use #633E2F 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.