#837EFF
Closest named color: Periwinkle (#8E82FE). oklch(66% 0.186 281.8), rgb(131, 126, 255).
Aa
Black text reads best on this color (6.39:1).
About this color
#837EFF is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.186 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.020 away. Black text reads best on it, at 6.39:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #837EFF |
| RGB | rgb(131, 126, 255) |
| HSL | hsl(242, 100%, 75%) |
| OKLCH | oklch(66% 0.186 281.8) |
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 #837EFF | 3.28:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #837EFF | 6.39:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #837EFF text on white | 3.28:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #837EFF text on black | 6.39:1 | AA | Lc -41.8 | 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
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D3D6FB
oklch(88.6% 0.051 281.6)
-
Step 300
300
#B6BAFA
oklch(80.9% 0.09 281.4)
-
Step 400
400
#9393F8
oklch(70.6% 0.146 282)
-
Step 500
500 (this color)
#837EFF
oklch(66% 0.186 281.8)
-
Step 600
600
#6659E4
oklch(55.6% 0.203 281.8)
-
Step 700
700
#5548C6
oklch(49.1% 0.188 281.6)
-
Step 800
800
#453CA0
oklch(42.6% 0.156 281.6)
-
Step 900
900
#3A357F
oklch(37.8% 0.121 282)
-
Step 950
950
#21204A
oklch(27% 0.076 281.1)
#837EFF 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) | #3F92FF | 0.080 |
| Deuteranopia (no green cones) | #3489FC | 0.082 |
| Tritanopia (no blue cones) | #559AB3 | 0.159 |
| Achromatopsia (no color) | #8E8E8E | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837EFF
#837EFF
oklch(66% 0.186 281.8)
- #A49400
#A49400
oklch(66% 0.138 101.7)
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 #837EFF, closest first.
No curated palette has a color within ΔE 0.04 of #837EFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.020
- Lavender Blue #8B88F8 ΔE 0.031
- Cornflower #6A79F7 ΔE 0.039
- Soft Blue #6488EA ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.058
- Medium Purple #9370DB ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.072
Use #837EFF 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.