#837CF3
Closest named color: Periwinkle (#8E82FE). oklch(64.9% 0.173 283.1), rgb(131, 124, 243).
Aa
Black text reads best on this color (6.14:1).
About this color
#837CF3 is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.173 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.027 away. Black text reads best on it, at 6.14:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.14:1 |
| White text | 3.41:1 |
Values
| HEX | #837CF3 |
| RGB | rgb(131, 124, 243) |
| HSL | hsl(244, 83%, 72%) |
| OKLCH | oklch(64.9% 0.173 283.1) |
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 #837CF3 | 3.41:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #837CF3 | 6.14:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #837CF3 text on white | 3.41:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #837CF3 text on black | 6.14:1 | AA | Lc -40.2 | 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 500.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D4D6F8
oklch(88.5% 0.047 282.7)
-
Step 300
300
#B8BAF6
oklch(80.8% 0.084 282.8)
-
Step 400
400
#9694F2
oklch(70.7% 0.136 283.3)
-
Step 500
500 (this color)
#837CF3
oklch(64.9% 0.173 283.1)
-
Step 600
600
#695CDB
oklch(55.6% 0.187 283.1)
-
Step 700
700
#584ABE
oklch(49% 0.175 283.3)
-
Step 800
800
#483E9A
oklch(42.8% 0.145 283.4)
-
Step 900
900
#3B367A
oklch(37.7% 0.112 282.9)
-
Step 950
950
#222048
oklch(26.9% 0.072 282.7)
#837CF3 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) | #478FF7 | 0.075 |
| Deuteranopia (no green cones) | #4187F0 | 0.076 |
| Tritanopia (no blue cones) | #5D95AC | 0.147 |
| Achromatopsia (no color) | #8B8B8B | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837CF3
#837CF3
oklch(64.9% 0.173 283.1)
- #9E9100
#9E9100
oklch(64.8% 0.136 103.1)
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 #837CF3, closest first.
No curated palette has a color within ΔE 0.04 of #837CF3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.027
- Lavender Blue #8B88F8 ΔE 0.033
- Cornflower #6A79F7 ΔE 0.036
- Medium Purple #9370DB ΔE 0.047
- Medium Slate Blue #7B68EE ΔE 0.050
- Soft Blue #6488EA ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.072
Use #837CF3 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.