#900F63
Closest named color: Red Violet (#9E0168). oklch(43.9% 0.175 347.8), rgb(144, 15, 99).
Aa
White text reads best on this color (8.62:1).
About this color
#900F63 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.175 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.029 away. White text reads best on it, at 8.62:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #900F63 |
| RGB | rgb(144, 15, 99) |
| HSL | hsl(321, 81%, 31%) |
| OKLCH | oklch(43.9% 0.175 347.8) |
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 #900F63 | 8.62:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #900F63 | 2.43:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #900F63 text on white | 8.62:1 | AAA | Lc 87.9 | Fine for body text |
| #900F63 text on black | 2.43:1 | Fails | Lc -14.3 | Not readable |
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
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#FAE2ED
oklch(93.5% 0.03 348.2)
-
Step 200
200
#F7CBE0
oklch(88.6% 0.056 348)
-
Step 300
300
#F2A6CC
oklch(80.9% 0.101 348.2)
-
Step 400
400
#E871B3
oklch(70.7% 0.164 347.7)
-
Step 500
500
#DD43A0
oklch(63.1% 0.21 347.7)
-
Step 600
600
#C8108A
oklch(55.6% 0.227 348)
-
Step 700
700
#AB0075
oklch(49.1% 0.206 347.8)
-
Step 800
800 (this color)
#900F63
oklch(43.9% 0.175 347.8)
-
Step 900
900
#71164E
oklch(37.7% 0.136 348.1)
-
Step 950
950
#42102E
oklch(27% 0.085 347.4)
#900F63 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) | #293E65 | 0.198 |
| Deuteranopia (no green cones) | #4F5360 | 0.171 |
| Tritanopia (no blue cones) | #9B033A | 0.071 |
| Achromatopsia (no color) | #4C4C4C | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #900F63
#900F63
oklch(43.9% 0.175 347.8)
- #006148
#006148
oklch(43.7% 0.089 167.7)
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 #900F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.029
- Dark Fuchsia #9D0759 ΔE 0.033
- Mulberry #920A4E ΔE 0.035
- Deep Magenta #A0025C ΔE 0.036
- Berry #990F4B ΔE 0.047
- Purple Red #990147 ΔE 0.050
- Violet Red #A50055 ΔE 0.051
- Red Purple #820747 ΔE 0.053
Use #900F63 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.