#A3757A
Closest named color: Reddish Grey (#997570). oklch(61% 0.058 11.7), rgb(163, 117, 122).
Aa
Black text reads best on this color (5.38:1).
About this color
#A3757A is a medium-dark, muted red. In OKLCH its lightness is 61%, its chroma 0.058 and its hue 12°. 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 5.38:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Reddish Grey (#997570) |
| Black text | 5.38:1 |
| White text | 3.90:1 |
Values
| HEX | #A3757A |
| RGB | rgb(163, 117, 122) |
| HSL | hsl(353, 20%, 55%) |
| OKLCH | oklch(61% 0.058 11.7) |
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 #A3757A | 3.90:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #A3757A | 5.38:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #A3757A text on white | 3.90:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #A3757A text on black | 5.38:1 | AA | Lc -35.3 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E3D5D6
oklch(88.5% 0.016 12.5)
-
Step 300
300
#D2B9BC
oklch(80.8% 0.029 9.5)
-
Step 400
400
#BB9599
oklch(70.6% 0.046 11.2)
-
Step 500
500 (this color)
#A3757A
oklch(61% 0.058 11.7)
-
Step 600
600
#94646A
oklch(55.6% 0.063 11.1)
-
Step 700
700
#7E5358
oklch(49.1% 0.058 11.8)
-
Step 800
800
#674448
oklch(42.7% 0.049 11.8)
-
Step 900
900
#54393C
oklch(37.7% 0.039 11.7)
-
Step 950
950
#312223
oklch(27.1% 0.023 14.3)
#A3757A 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) | #7C7C7A | 0.064 |
| Deuteranopia (no green cones) | #878479 | 0.059 |
| Tritanopia (no blue cones) | #AC7177 | 0.017 |
| Achromatopsia (no color) | #818181 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3757A
#A3757A
oklch(61% 0.058 11.7)
- #588F8C
#588F8C
oklch(61.1% 0.059 191.3)
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 #A3757A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddish Grey #997570 ΔE 0.023
- Mauve #AE7181 ΔE 0.025
- English Lavender #9D8189 ΔE 0.033
- Pinkish Brown #B17261 ΔE 0.040
- Purpley Grey #947E94 ΔE 0.043
- Dusky Rose #BA6873 ΔE 0.047
- Dusty Rose #C0737A ΔE 0.050
- Warm Grey #978A84 ΔE 0.056
Use #A3757A 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.