#A31D77
Closest named color: Red Violet (#9E0168). oklch(48.9% 0.187 345.4), rgb(163, 29, 119).
Aa
White text reads best on this color (7.00:1).
About this color
#A31D77 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.187 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.031 away. White text reads best on it, at 7.00:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #A31D77 |
| RGB | rgb(163, 29, 119) |
| HSL | hsl(320, 70%, 38%) |
| OKLCH | oklch(48.9% 0.187 345.4) |
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 #A31D77 | 7.00:1 | AAA | Lc -87.8 | Fine for body text |
| Black text on #A31D77 | 2.99:1 | Fails | Lc 21.3 | Dividers and decoration only |
| #A31D77 text on white | 7.00:1 | AAA | Lc 82.8 | Fine for body text |
| #A31D77 text on black | 2.99:1 | Fails | Lc -19.2 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3EE
oklch(93.6% 0.027 344.6)
-
Step 200
200
#F3CCE0
oklch(88.4% 0.051 345.9)
-
Step 300
300
#ECA9CE
oklch(80.9% 0.091 345.1)
-
Step 400
400
#DF79B4
oklch(70.7% 0.144 345.7)
-
Step 500
500
#D351A2
oklch(63.1% 0.185 345.3)
-
Step 600
600
#BE2E8D
oklch(55.6% 0.201 345.3)
-
Step 700
700 (this color)
#A31D77
oklch(48.9% 0.187 345.4)
-
Step 800
800
#851D61
oklch(42.7% 0.155 345.6)
-
Step 900
900
#6B1F4F
oklch(37.6% 0.121 345.6)
-
Step 950
950
#3F142F
oklch(27% 0.076 344.8)
#A31D77 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) | #314B79 | 0.211 |
| Deuteranopia (no green cones) | #5A6174 | 0.182 |
| Tritanopia (no blue cones) | #AE1949 | 0.078 |
| Achromatopsia (no color) | #595959 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31D77
#A31D77
oklch(48.9% 0.187 345.4)
- #007252
#007252
oklch(48.9% 0.102 165.5)
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 #A31D77, closest first.
No curated palette has a color within ΔE 0.04 of #A31D77.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.031
- Deep Magenta #A0025C ΔE 0.044
- Warm Purple #952E8F ΔE 0.049
- Dark Fuchsia #9D0759 ΔE 0.049
- Violet Red #A50055 ΔE 0.054
- Berry #990F4B ΔE 0.071
- Mulberry #920A4E ΔE 0.073
- Dark Magenta #8B008B ΔE 0.074
Use #A31D77 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.