#905138
Closest named color: Sienna (#A0522D). oklch(50.4% 0.093 42.1), rgb(144, 81, 56).
Aa
White text reads best on this color (6.14:1).
About this color
#905138 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 50%, its chroma 0.093 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.033 away. White text reads best on it, at 6.14:1.
| Hue family | Browns |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #905138 |
| RGB | rgb(144, 81, 56) |
| HSL | hsl(17, 44%, 39%) |
| OKLCH | oklch(50.4% 0.093 42.1) |
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 #905138 | 6.14:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #905138 | 3.41:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #905138 text on white | 6.14:1 | AA | Lc 80.4 | Fine for body text |
| #905138 text on black | 3.41:1 | AA large text | Lc -21.5 | 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 700.
-
Step 50
50
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E3
oklch(93.6% 0.013 41.2)
-
Step 200
200
#E8D4CD
oklch(88.4% 0.024 40.3)
-
Step 300
300
#DBB8AA
oklch(80.9% 0.045 43)
-
Step 400
400
#C8927E
oklch(70.7% 0.072 41.2)
-
Step 500
500
#B8765D
oklch(63% 0.091 41.5)
-
Step 600
600
#A45E43
oklch(55.6% 0.1 41.6)
-
Step 700
700 (this color)
#905138
oklch(50.4% 0.093 42.1)
-
Step 800
800
#72402C
oklch(42.8% 0.077 42.2)
-
Step 900
900
#5C3628
oklch(37.6% 0.06 40.9)
-
Step 950
950
#362018
oklch(27% 0.037 40.7)
#905138 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) | #625936 | 0.084 |
| Deuteranopia (no green cones) | #716737 | 0.079 |
| Tritanopia (no blue cones) | #9D464B | 0.048 |
| Achromatopsia (no color) | #626262 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #905138
#905138
oklch(50.4% 0.093 42.1)
- #026F8A
#026F8A
oklch(50.3% 0.093 222.5)
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 #905138, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.033
- Cocoa #875F42 ΔE 0.036
- Warm Brown #964E02 ΔE 0.039
- Saddle Brown #8B4513 ΔE 0.041
- Burnt Umber #A0450E ΔE 0.043
- Sepia #985E2B ΔE 0.045
- Milk Chocolate #7F4E1E ΔE 0.045
- Medium Brown #7F5112 ΔE 0.052
Use #905138 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.