#633413
Closest named color: Chestnut (#742802). oklch(37.9% 0.081 52.4), rgb(99, 52, 19).
Aa
White text reads best on this color (10.33:1).
About this color
#633413 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.081 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.040 away. White text reads best on it, at 10.33:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #633413 |
| RGB | rgb(99, 52, 19) |
| HSL | hsl(25, 68%, 23%) |
| OKLCH | oklch(37.9% 0.081 52.4) |
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 #633413 | 10.33:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #633413 | 2.03:1 | Fails | Lc 10.3 | Not readable |
| #633413 text on white | 10.33:1 | AAA | Lc 93.7 | Preferred for body text |
| #633413 text on black | 2.03:1 | Fails | Lc -8.9 | 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F4E7DF
oklch(93.6% 0.018 54)
-
Step 200
200
#ECD4C5
oklch(88.6% 0.034 54.1)
-
Step 300
300
#E1B69D
oklch(80.8% 0.061 51.7)
-
Step 400
400
#D18F66
oklch(70.7% 0.098 52.4)
-
Step 500
500
#C3723B
oklch(63.1% 0.124 52.6)
-
Step 600
600
#AF5812
oklch(55.6% 0.135 52.2)
-
Step 700
700
#964800
oklch(49.2% 0.125 52.6)
-
Step 800
800
#7A3B08
oklch(42.7% 0.105 52.1)
-
Step 900
900 (this color)
#633413
oklch(37.9% 0.081 52.4)
-
Step 950
950
#3A1F0C
oklch(27.1% 0.052 53.7)
#633413 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) | #423A0F | 0.067 |
| Deuteranopia (no green cones) | #4D4413 | 0.060 |
| Tritanopia (no blue cones) | #6D2A2D | 0.051 |
| Achromatopsia (no color) | #404040 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633413
#633413
oklch(37.9% 0.081 52.4)
- #004864
#004864
oklch(37.8% 0.078 232.8)
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 #633413, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.040
- Mud Brown #60460F ΔE 0.052
- Purple Brown #673A3F ΔE 0.058
- Reddy Brown #6E1005 ΔE 0.068
- Rust Brown #8B3103 ΔE 0.081
- Blood #770001 ΔE 0.082
- Red Brown #8B2E16 ΔE 0.082
- Green Brown #544E03 ΔE 0.083
Use #633413 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.