#A45537
Closest named color: Sienna (#A0522D). oklch(53.9% 0.113 41), rgb(164, 85, 55).
Aa
White text reads best on this color (5.33:1).
About this color
#A45537 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 54%, its chroma 0.113 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.014 away. White text reads best on it, at 5.33:1.
| Hue family | Browns |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #A45537 |
| RGB | rgb(164, 85, 55) |
| HSL | hsl(17, 50%, 43%) |
| OKLCH | oklch(53.9% 0.113 41) |
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 #A45537 | 5.33:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #A45537 | 3.93:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #A45537 text on white | 5.33:1 | AA | Lc 76.2 | Fine for body text |
| #A45537 text on black | 3.93:1 | AA large text | Lc -25.6 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD3CB
oklch(88.4% 0.029 39.3)
-
Step 300
300
#DEB6A8
oklch(80.8% 0.051 40.2)
-
Step 400
400
#CD9079
oklch(70.8% 0.082 41.5)
-
Step 500
500
#BE7357
oklch(63.1% 0.103 41.1)
-
Step 600
600 (this color)
#A45537
oklch(53.9% 0.113 41)
-
Step 700
700
#914A2E
oklch(49.1% 0.104 41.6)
-
Step 800
800
#763D27
oklch(42.7% 0.087 41.4)
-
Step 900
900
#603424
oklch(37.7% 0.069 40.5)
-
Step 950
950
#381F16
oklch(27% 0.042 40.5)
#A45537 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) | #6A6034 | 0.106 |
| Deuteranopia (no green cones) | #7D7236 | 0.099 |
| Tritanopia (no blue cones) | #B3464E | 0.057 |
| Achromatopsia (no color) | #6B6B6B | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A45537
#A45537
oklch(53.9% 0.113 41)
- #007B96
#007B96
oklch(53.9% 0.098 220.3)
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 #A45537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.014
- Cinnamon #AC4F06 ΔE 0.033
- Sepia #985E2B ΔE 0.036
- Earth #A2653E ΔE 0.038
- Burnt Umber #A0450E ΔE 0.043
- Burnt Siena #B75203 ΔE 0.045
- Raw Umber #A75E09 ΔE 0.045
- Warm Brown #964E02 ΔE 0.049
Use #A45537 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.