#A75437
Closest named color: Sienna (#A0522D). oklch(54.1% 0.117 39.6), rgb(167, 84, 55).
Aa
White text reads best on this color (5.29:1).
About this color
#A75437 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.117 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.018 away. White text reads best on it, at 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #A75437 |
| RGB | rgb(167, 84, 55) |
| HSL | hsl(16, 50%, 44%) |
| OKLCH | oklch(54.1% 0.117 39.6) |
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 #A75437 | 5.29:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #A75437 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #A75437 text on white | 5.29:1 | AA | Lc 75.9 | Fine for body text |
| #A75437 text on black | 3.96:1 | AA large text | Lc -25.8 | 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 600.
-
Step 50
50
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E7E2
oklch(93.7% 0.016 42.4)
-
Step 200
200
#EBD3CB
oklch(88.4% 0.029 39.3)
-
Step 300
300
#E0B6A8
oklch(81% 0.053 39.3)
-
Step 400
400
#CF8F79
oklch(70.8% 0.085 39.8)
-
Step 500
500
#C17156
oklch(63.1% 0.109 39.3)
-
Step 600
600 (this color)
#A75437
oklch(54.1% 0.117 39.6)
-
Step 700
700
#93482D
oklch(49.1% 0.109 40)
-
Step 800
800
#783C27
oklch(42.8% 0.09 39.7)
-
Step 900
900
#613324
oklch(37.6% 0.071 38.8)
-
Step 950
950
#391E15
oklch(26.9% 0.045 39.2)
#A75437 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 | 0.112 |
| Deuteranopia (no green cones) | #7E7236 | 0.103 |
| Tritanopia (no blue cones) | #B7444D | 0.057 |
| Achromatopsia (no color) | #6B6B6B | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A75437
#A75437
oklch(54.1% 0.117 39.6)
- #007C96
#007C96
oklch(54.2% 0.098 219.3)
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 #A75437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.018
- Cinnamon #AC4F06 ΔE 0.032
- Earth #A2653E ΔE 0.040
- Sepia #985E2B ΔE 0.041
- Burnt Siena #B75203 ΔE 0.042
- Burnt Umber #A0450E ΔE 0.044
- Raw Umber #A75E09 ΔE 0.047
- Warm Brown #964E02 ΔE 0.053
Use #A75437 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.