#644276
Closest named color: Twilight (#4E518B). oklch(44% 0.092 313.2), rgb(100, 66, 118).
Aa
White text reads best on this color (8.13:1).
About this color
#644276 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.092 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.057 away. White text reads best on it, at 8.13:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #644276 |
| RGB | rgb(100, 66, 118) |
| HSL | hsl(279, 28%, 36%) |
| OKLCH | oklch(44% 0.092 313.2) |
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 #644276 | 8.13:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #644276 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #644276 text on white | 8.13:1 | AAA | Lc 88.0 | Fine for body text |
| #644276 text on black | 2.58:1 | Fails | Lc -14.2 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#E0D4E7
oklch(88.5% 0.029 313.3)
-
Step 300
300
#CDB7DA
oklch(80.9% 0.054 313)
-
Step 400
400
#B391C7
oklch(70.7% 0.086 312.7)
-
Step 500
500
#A175B8
oklch(63.1% 0.109 313.5)
-
Step 600
600
#8C5DA4
oklch(55.7% 0.118 313.5)
-
Step 700
700
#774C8D
oklch(49.2% 0.111 313.4)
-
Step 800
800 (this color)
#644276
oklch(44% 0.092 313.2)
-
Step 900
900
#4F365C
oklch(37.8% 0.07 313.5)
-
Step 950
950
#2E2036
oklch(27.1% 0.044 312.7)
#644276 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) | #384E78 | 0.074 |
| Deuteranopia (no green cones) | #415075 | 0.066 |
| Tritanopia (no blue cones) | #624956 | 0.063 |
| Achromatopsia (no color) | #4F4F4F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644276
#644276
oklch(44% 0.092 313.2)
- #3E5D24
#3E5D24
oklch(44% 0.092 132.8)
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 #644276, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.057
- Dusk #4E5481 ΔE 0.058
- Dusty Grape #545775 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.065
- Rebecca Purple #663399 ΔE 0.072
- Light Eggplant #894585 ΔE 0.075
- Brownish Purple #76424E ΔE 0.075
- Blueberry #464196 ΔE 0.075
Use #644276 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.