#99643B
Closest named color: Earth (#A2653E). oklch(55.2% 0.089 57.3), rgb(153, 100, 59).
Aa
White text reads best on this color (4.95:1).
About this color
#99643B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 55%, its chroma 0.089 and its hue 57°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.017 away. White text reads best on it, at 4.95:1.
| Hue family | Browns |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.24:1 |
| White text | 4.95:1 |
Values
| HEX | #99643B |
| RGB | rgb(153, 100, 59) |
| HSL | hsl(26, 44%, 42%) |
| OKLCH | oklch(55.2% 0.089 57.3) |
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 #99643B | 4.95:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #99643B | 4.24:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #99643B text on white | 4.95:1 | AA | Lc 74.1 | Content text, not long reading |
| #99643B text on black | 4.24:1 | AA large text | Lc -27.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E3
oklch(93.6% 0.011 54.5)
-
Step 200
200
#E5D6CB
oklch(88.5% 0.022 58.8)
-
Step 300
300
#D5BBA8
oklch(80.9% 0.04 58.3)
-
Step 400
400
#C0977A
oklch(70.7% 0.064 56.7)
-
Step 500
500
#AF7D57
oklch(63.1% 0.082 57.8)
-
Step 600
600 (this color)
#99643B
oklch(55.2% 0.089 57.3)
-
Step 700
700
#84542E
oklch(49.1% 0.083 57.6)
-
Step 800
800
#6B4527
oklch(42.7% 0.068 57.8)
-
Step 900
900
#573A24
oklch(37.7% 0.054 57.4)
-
Step 950
950
#332216
oklch(26.9% 0.033 56)
#99643B 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) | #746937 | 0.065 |
| Deuteranopia (no green cones) | #80753B | 0.061 |
| Tritanopia (no blue cones) | #A6595A | 0.062 |
| Achromatopsia (no color) | #707070 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99643B
#99643B
oklch(55.2% 0.089 57.3)
- #39799F
#39799F
oklch(55.1% 0.088 237.4)
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 #99643B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.017
- Sepia #985E2B ΔE 0.019
- Dirt #8A6E45 ΔE 0.034
- Dull Brown #876E4B ΔE 0.038
- Cocoa #875F42 ΔE 0.038
- Raw Sienna #9A6200 ΔE 0.038
- Raw Umber #A75E09 ΔE 0.038
- Dirt Brown #836539 ΔE 0.039
Use #99643B 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.