#AC2978
Closest named color: Red Violet (#9E0168). oklch(51.3% 0.182 348.6), rgb(172, 41, 120).
Aa
White text reads best on this color (6.28:1).
About this color
#AC2978 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.182 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.053 away. White text reads best on it, at 6.28:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #AC2978 |
| RGB | rgb(172, 41, 120) |
| HSL | hsl(324, 62%, 42%) |
| OKLCH | oklch(51.3% 0.182 348.6) |
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 #AC2978 | 6.28:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #AC2978 | 3.34:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #AC2978 text on white | 6.28:1 | AA | Lc 80.0 | Fine for body text |
| #AC2978 text on black | 3.34:1 | AA large text | Lc -21.8 | 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 700.
-
Step 50
50
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F3CDDE
oklch(88.5% 0.048 349.4)
-
Step 300
300
#ECAACA
oklch(80.9% 0.087 348.6)
-
Step 400
400
#E079AF
oklch(70.7% 0.142 348.6)
-
Step 500
500
#D4529B
oklch(63.1% 0.18 348.7)
-
Step 600
600
#BF3086
oklch(55.6% 0.196 348.6)
-
Step 700
700 (this color)
#AC2978
oklch(51.3% 0.182 348.6)
-
Step 800
800
#861E5C
oklch(42.8% 0.151 349)
-
Step 900
900
#6C204C
oklch(37.8% 0.118 348.5)
-
Step 950
950
#3F142C
oklch(26.9% 0.074 348.6)
#AC2978 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) | #3E517A | 0.203 |
| Deuteranopia (no green cones) | #646875 | 0.179 |
| Tritanopia (no blue cones) | #B9224D | 0.072 |
| Achromatopsia (no color) | #606060 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC2978
#AC2978
oklch(51.3% 0.182 348.6)
- #007A5C
#007A5C
oklch(51.5% 0.104 168.2)
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 #AC2978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.053
- Medium Violet Red #C71585 ΔE 0.056
- Deep Magenta #A0025C ΔE 0.058
- Violet Red #A50055 ΔE 0.060
- Warm Purple #952E8F ΔE 0.061
- Dark Fuchsia #9D0759 ΔE 0.063
- Light Burgundy #A8415B ΔE 0.070
- Raspberry #B00149 ΔE 0.071
Use #AC2978 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.