#A37EF3
Closest named color: Periwinkle (#8E82FE). oklch(67.9% 0.169 296.2), rgb(163, 126, 243).
Aa
Black text reads best on this color (6.83:1).
About this color
#A37EF3 is a medium-light, vivid purple. In OKLCH its lightness is 68%, its chroma 0.169 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.035 away. Black text reads best on it, at 6.83:1.
| Hue family | Purples |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.83:1 |
| White text | 3.07:1 |
Values
| HEX | #A37EF3 |
| RGB | rgb(163, 126, 243) |
| HSL | hsl(259, 83%, 72%) |
| OKLCH | oklch(67.9% 0.169 296.2) |
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 #A37EF3 | 3.07:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #A37EF3 | 6.83:1 | AA | Lc 46.6 | Large or bold text, headings |
| #A37EF3 text on white | 3.07:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #A37EF3 text on black | 6.83:1 | AA | Lc -44.4 | Non-text elements, placeholder text |
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 400.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FD
oklch(93.6% 0.031 295.8)
-
Step 200
200
#DCD2FC
oklch(88.5% 0.058 296.1)
-
Step 300
300
#C7B3FD
oklch(81% 0.105 296.4)
-
Step 400
400 (this color)
#A37EF3
oklch(67.9% 0.169 296.2)
-
Step 500
500
#9962FA
oklch(63% 0.217 296.3)
-
Step 600
600
#8542E9
oklch(55.6% 0.235 296.2)
-
Step 700
700
#7131CB
oklch(49.1% 0.219 296.1)
-
Step 800
800
#5C2BA4
oklch(42.7% 0.181 296.3)
-
Step 900
900
#4B2A82
oklch(37.8% 0.141 296.2)
-
Step 950
950
#2B1A4C
oklch(27% 0.089 295.5)
#A37EF3 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) | #5594F7 | 0.106 |
| Deuteranopia (no green cones) | #5D92F0 | 0.099 |
| Tritanopia (no blue cones) | #9194AD | 0.134 |
| Achromatopsia (no color) | #939393 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37EF3
#A37EF3
oklch(67.9% 0.169 296.2)
- #94A300
#94A300
oklch(68% 0.156 116.2)
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 #A37EF3, closest first.
No curated palette has a color within ΔE 0.04 of #A37EF3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.035
- Lavender Blue #8B88F8 ΔE 0.040
- Light Urple #B36FF6 ΔE 0.041
- Light Purple #BF77F6 ΔE 0.047
- Perrywinkle #8F8CE7 ΔE 0.049
- Medium Purple #9370DB ΔE 0.054
- Easter Purple #C071FE ΔE 0.056
- Periwinkle Blue #8F99FB ΔE 0.068
Use #A37EF3 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.