#644EE2
Closest named color: Warm Blue (#4B57DB). oklch(53.5% 0.214 283.2), rgb(100, 78, 226).
Aa
White text reads best on this color (5.63:1).
About this color
#644EE2 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.214 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.039 away. White text reads best on it, at 5.63:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.214) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.72:1 |
| White text | 5.63:1 |
Values
| HEX | #644EE2 |
| RGB | rgb(100, 78, 226) |
| HSL | hsl(249, 72%, 60%) |
| OKLCH | oklch(53.5% 0.214 283.2) |
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 #644EE2 | 5.63:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #644EE2 | 3.72:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #644EE2 text on white | 5.63:1 | AA | Lc 77.6 | Fine for body text |
| #644EE2 text on black | 3.72:1 | AA large text | Lc -24.2 | 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 600.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D4D5FC
oklch(88.5% 0.053 284.1)
-
Step 300
300
#B8B9FD
oklch(80.9% 0.096 283.4)
-
Step 400
400
#9591FD
oklch(70.7% 0.155 283.4)
-
Step 500
500
#7E72FA
oklch(63.2% 0.196 283.2)
-
Step 600
600 (this color)
#644EE2
oklch(53.5% 0.214 283.2)
-
Step 700
700
#5844CB
oklch(49.1% 0.199 283)
-
Step 800
800
#4839A4
oklch(42.7% 0.165 283.3)
-
Step 900
900
#3B3382
oklch(37.7% 0.128 282.9)
-
Step 950
950
#221F4C
oklch(27% 0.081 282.6)
#644EE2 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) | #006CE7 | 0.095 |
| Deuteranopia (no green cones) | #0062DF | 0.088 |
| Tritanopia (no blue cones) | #257491 | 0.181 |
| Achromatopsia (no color) | #676767 | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644EE2
#644EE2
oklch(53.5% 0.214 283.2)
- #796F00
#796F00
oklch(53.4% 0.112 103.3)
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 #644EE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.044
- Slate Blue #6A5ACD ΔE 0.044
- Dark Periwinkle #665FD1 ΔE 0.047
- Purpley Blue #5F34E7 ΔE 0.047
- Burple #6832E3 ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.050
- Iris #6258C4 ΔE 0.052
Use #644EE2 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.