#90663A
Closest named color: Dirt (#8A6E45). oklch(54.4% 0.081 66), rgb(144, 102, 58).
Aa
White text reads best on this color (5.06:1).
About this color
#90663A is a medium-dark, moderately saturated brown. In OKLCH its lightness is 54%, its chroma 0.081 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Dirt (#8A6E45), ΔE 0.022 away. White text reads best on it, at 5.06:1.
| Hue family | Browns |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Dirt (#8A6E45) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #90663A |
| RGB | rgb(144, 102, 58) |
| HSL | hsl(31, 43%, 40%) |
| OKLCH | oklch(54.4% 0.081 66) |
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 #90663A | 5.06:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #90663A | 4.14:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #90663A text on white | 5.06:1 | AA | Lc 74.8 | Content text, not long reading |
| #90663A text on black | 4.14:1 | AA large text | Lc -26.9 | 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
#EFE9E3
oklch(93.7% 0.01 67.7)
-
Step 200
200
#E3D7CC
oklch(88.6% 0.02 65.1)
-
Step 300
300
#D1BCA8
oklch(80.8% 0.036 65.9)
-
Step 400
400
#BA9A7A
oklch(70.7% 0.058 66.6)
-
Step 500
500
#A98158
oklch(63.2% 0.075 66.5)
-
Step 600
600 (this color)
#90663A
oklch(54.4% 0.081 66)
-
Step 700
700
#7E582F
oklch(49.2% 0.076 66.5)
-
Step 800
800
#664828
oklch(42.7% 0.062 66.6)
-
Step 900
900
#533C25
oklch(37.6% 0.048 65.5)
-
Step 950
950
#312316
oklch(26.9% 0.031 63.8)
#90663A 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) | #746936 | 0.049 |
| Deuteranopia (no green cones) | #7E723B | 0.043 |
| Tritanopia (no blue cones) | #9C5C5C | 0.064 |
| Achromatopsia (no color) | #6E6E6E | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90663A
#90663A
oklch(54.4% 0.081 66)
- #46749C
#46749C
oklch(54.3% 0.081 246.2)
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 #90663A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dirt #8A6E45 ΔE 0.022
- Dirt Brown #836539 ΔE 0.023
- Sepia #985E2B ΔE 0.023
- Dull Brown #876E4B ΔE 0.026
- Cocoa #875F42 ΔE 0.030
- Earth #A2653E ΔE 0.033
- Dark Taupe #7F684E ΔE 0.035
- Raw Sienna #9A6200 ΔE 0.037
Use #90663A 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.