#90523D
Closest named color: Sienna (#A0522D). oklch(50.6% 0.089 39.4), rgb(144, 82, 61).
Aa
White text reads best on this color (6.06:1).
About this color
#90523D is a medium-dark, moderately saturated red. In OKLCH its lightness is 51%, its chroma 0.089 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.034 away. White text reads best on it, at 6.06:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #90523D |
| RGB | rgb(144, 82, 61) |
| HSL | hsl(15, 40%, 40%) |
| OKLCH | oklch(50.6% 0.089 39.4) |
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 #90523D | 6.06:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #90523D | 3.46:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #90523D text on white | 6.06:1 | AA | Lc 80.0 | Fine for body text |
| #90523D text on black | 3.46:1 | AA large text | Lc -21.8 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E8D4CE
oklch(88.5% 0.024 37.4)
-
Step 300
300
#DAB8AC
oklch(80.9% 0.043 40.4)
-
Step 400
400
#C79281
oklch(70.7% 0.069 38.5)
-
Step 500
500
#B87761
oklch(63.2% 0.088 39.5)
-
Step 600
600
#A35F47
oklch(55.7% 0.096 40.1)
-
Step 700
700 (this color)
#90523D
oklch(50.6% 0.089 39.4)
-
Step 800
800
#71402F
oklch(42.7% 0.074 39.8)
-
Step 900
900
#5C372A
oklch(37.8% 0.058 40.1)
-
Step 950
950
#362019
oklch(27% 0.037 38.4)
#90523D 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) | #625A3B | 0.084 |
| Deuteranopia (no green cones) | #71683C | 0.079 |
| Tritanopia (no blue cones) | #9D474D | 0.046 |
| Achromatopsia (no color) | #626262 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90523D
#90523D
oklch(50.6% 0.089 39.4)
- #0B7088
#0B7088
oklch(50.5% 0.089 220.2)
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 #90523D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.034
- Cocoa #875F42 ΔE 0.035
- Warm Brown #964E02 ΔE 0.045
- Sepia #985E2B ΔE 0.046
- Saddle Brown #8B4513 ΔE 0.047
- Burnt Umber #A0450E ΔE 0.048
- Milk Chocolate #7F4E1E ΔE 0.049
- Medium Brown #7F5112 ΔE 0.056
Use #90523D 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.