#A51978
Closest named color: Red Violet (#9E0168). oklch(49.1% 0.192 345.4), rgb(165, 25, 120).
Aa
White text reads best on this color (6.97:1).
About this color
#A51978 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.192 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.032 away. White text reads best on it, at 6.97:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.01:1 |
| White text | 6.97:1 |
Values
| HEX | #A51978 |
| RGB | rgb(165, 25, 120) |
| HSL | hsl(319, 74%, 37%) |
| OKLCH | oklch(49.1% 0.192 345.4) |
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 #A51978 | 6.97:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #A51978 | 3.01:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #A51978 text on white | 6.97:1 | AA | Lc 82.5 | Fine for body text |
| #A51978 text on black | 3.01:1 | AA large text | Lc -19.4 | 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
#F4CCE1
oklch(88.5% 0.052 345.3)
-
Step 300
300
#EDA9CE
oklch(81% 0.092 345.5)
-
Step 400
400
#E177B5
oklch(70.7% 0.15 345.5)
-
Step 500
500
#D54EA2
oklch(63.1% 0.191 345.6)
-
Step 600
600
#C02A8D
oklch(55.6% 0.206 345.6)
-
Step 700
700 (this color)
#A51978
oklch(49.1% 0.192 345.4)
-
Step 800
800
#861A62
oklch(42.7% 0.159 345.3)
-
Step 900
900
#6C1E50
oklch(37.7% 0.124 345.3)
-
Step 950
950
#40132F
oklch(27.1% 0.079 345.4)
#A51978 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) | #304A7A | 0.217 |
| Deuteranopia (no green cones) | #5B6175 | 0.186 |
| Tritanopia (no blue cones) | #B11548 | 0.082 |
| Achromatopsia (no color) | #595959 | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A51978
#A51978
oklch(49.1% 0.192 345.4)
- #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 #A51978, closest first.
No curated palette has a color within ΔE 0.04 of #A51978.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.032
- Deep Magenta #A0025C ΔE 0.046
- Warm Purple #952E8F ΔE 0.051
- Dark Fuchsia #9D0759 ΔE 0.051
- Violet Red #A50055 ΔE 0.055
- Medium Violet Red #C71585 ΔE 0.071
- Berry #990F4B ΔE 0.074
- Dark Magenta #8B008B ΔE 0.075
Use #A51978 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.