#991663
Closest named color: Red Violet (#9E0168). oklch(45.9% 0.176 351.2), rgb(153, 22, 99).
Aa
White text reads best on this color (7.92:1).
About this color
#991663 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.176 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.018 away. White text reads best on it, at 7.92:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #991663 |
| RGB | rgb(153, 22, 99) |
| HSL | hsl(325, 75%, 34%) |
| OKLCH | oklch(45.9% 0.176 351.2) |
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 #991663 | 7.92:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #991663 | 2.64:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #991663 text on white | 7.92:1 | AAA | Lc 85.9 | Fine for body text |
| #991663 text on black | 2.64:1 | Fails | Lc -16.2 | 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 800.
-
Step 50
50
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FBE2EC
oklch(93.6% 0.03 351.5)
-
Step 200
200
#F8CADE
oklch(88.5% 0.058 350.4)
-
Step 300
300
#F4A5C8
oklch(80.9% 0.103 351.5)
-
Step 400
400
#EB70AD
oklch(70.8% 0.165 351.2)
-
Step 500
500
#E04198
oklch(63% 0.21 351.3)
-
Step 600
600
#CB0783
oklch(55.6% 0.228 351.1)
-
Step 700
700
#AD006E
oklch(49.2% 0.204 351.3)
-
Step 800
800 (this color)
#991663
oklch(45.9% 0.176 351.2)
-
Step 900
900
#73144A
oklch(37.8% 0.138 351.4)
-
Step 950
950
#440F2B
oklch(27.1% 0.087 352)
#991663 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) | #324265 | 0.199 |
| Deuteranopia (no green cones) | #575960 | 0.174 |
| Tritanopia (no blue cones) | #A5033C | 0.065 |
| Achromatopsia (no color) | #515151 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #991663
#991663
oklch(45.9% 0.176 351.2)
- #006751
#006751
oklch(45.7% 0.089 171.4)
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 #991663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.018
- Dark Fuchsia #9D0759 ΔE 0.018
- Deep Magenta #A0025C ΔE 0.019
- Violet Red #A50055 ΔE 0.033
- Mulberry #920A4E ΔE 0.036
- Berry #990F4B ΔE 0.038
- Purple Red #990147 ΔE 0.044
- Cranberry #9E003A ΔE 0.064
Use #991663 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.