#837CFF
Closest named color: Periwinkle (#8E82FE). oklch(65.6% 0.189 282.3), rgb(131, 124, 255).
Aa
Black text reads best on this color (6.29:1).
About this color
#837CFF is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.189 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.023 away. Black text reads best on it, at 6.29:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #837CFF |
| RGB | rgb(131, 124, 255) |
| HSL | hsl(243, 100%, 74%) |
| OKLCH | oklch(65.6% 0.189 282.3) |
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 #837CFF | 3.33:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #837CFF | 6.29:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #837CFF text on white | 3.33:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #837CFF text on black | 6.29:1 | AA | Lc -41.2 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D3D6FB
oklch(88.6% 0.051 281.6)
-
Step 300
300
#B7BAFB
oklch(81% 0.092 282.1)
-
Step 400
400
#9493F9
oklch(70.8% 0.147 282.4)
-
Step 500
500 (this color)
#837CFF
oklch(65.6% 0.189 282.3)
-
Step 600
600
#6758E5
oklch(55.6% 0.205 282.2)
-
Step 700
700
#5647C7
oklch(49.1% 0.191 282.1)
-
Step 800
800
#463BA1
oklch(42.6% 0.158 282.2)
-
Step 900
900
#3A3480
oklch(37.7% 0.124 282.2)
-
Step 950
950
#221F4B
oklch(27% 0.079 282.8)
#837CFF 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) | #3A91FF | 0.084 |
| Deuteranopia (no green cones) | #2F88FC | 0.086 |
| Tritanopia (no blue cones) | #5599B2 | 0.162 |
| Achromatopsia (no color) | #8D8D8D | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837CFF
#837CFF
oklch(65.6% 0.189 282.3)
- #A29300
#A29300
oklch(65.6% 0.137 102.2)
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 #837CFF, closest first.
No curated palette has a color within ΔE 0.04 of #837CFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.023
- Lavender Blue #8B88F8 ΔE 0.035
- Cornflower #6A79F7 ΔE 0.038
- Medium Slate Blue #7B68EE ΔE 0.053
- Soft Blue #6488EA ΔE 0.059
- Medium Purple #9370DB ΔE 0.061
- Perrywinkle #8F8CE7 ΔE 0.061
- Periwinkle Blue #8F99FB ΔE 0.077
Use #837CFF 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.