#A37A75
Closest named color: Reddish Grey (#997570). oklch(61.8% 0.052 26.6), rgb(163, 122, 117).
Aa
Black text reads best on this color (5.59:1).
About this color
#A37A75 is a medium-dark, muted red. In OKLCH its lightness is 62%, its chroma 0.052 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Reddish Grey (#997570), ΔE 0.023 away. Black text reads best on it, at 5.59:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Reddish Grey (#997570) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #A37A75 |
| RGB | rgb(163, 122, 117) |
| HSL | hsl(7, 20%, 55%) |
| OKLCH | oklch(61.8% 0.052 26.6) |
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 #A37A75 | 3.75:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #A37A75 | 5.59:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #A37A75 text on white | 3.75:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #A37A75 text on black | 5.59:1 | AA | Lc -36.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E2D6D4
oklch(88.5% 0.014 28.9)
-
Step 300
300
#D1BBB8
oklch(81% 0.026 27)
-
Step 400
400
#B99793
oklch(70.6% 0.041 26)
-
Step 500
500 (this color)
#A37A75
oklch(61.8% 0.052 26.6)
-
Step 600
600
#926762
oklch(55.7% 0.056 26.5)
-
Step 700
700
#7C5551
oklch(49% 0.053 25.7)
-
Step 800
800
#654642
oklch(42.7% 0.044 27.3)
-
Step 900
900
#523B38
oklch(37.7% 0.033 27.2)
-
Step 950
950
#302221
oklch(26.8% 0.022 23.3)
#A37A75 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) | #827F75 | 0.053 |
| Deuteranopia (no green cones) | #8C8775 | 0.049 |
| Tritanopia (no blue cones) | #AC7579 | 0.022 |
| Achromatopsia (no color) | #848484 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37A75
#A37A75
oklch(61.8% 0.052 26.6)
- #5F8F95
#5F8F95
oklch(61.8% 0.052 205.8)
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 #A37A75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddish Grey #997570 ΔE 0.023
- English Lavender #9D8189 ΔE 0.029
- Pinkish Brown #B17261 ΔE 0.034
- Mauve #AE7181 ΔE 0.038
- Warm Grey #978A84 ΔE 0.043
- Purpley Grey #947E94 ΔE 0.048
- Mocha #9D7651 ΔE 0.049
- Brown Grey #8D8468 ΔE 0.052
Use #A37A75 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.