#837FFB
Closest named color: Periwinkle (#8E82FE). oklch(65.9% 0.179 281.7), rgb(131, 127, 251).
Aa
Black text reads best on this color (6.39:1).
About this color
#837FFB is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.179 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.019 away. Black text reads best on it, at 6.39:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #837FFB |
| RGB | rgb(131, 127, 251) |
| HSL | hsl(242, 94%, 74%) |
| OKLCH | oklch(65.9% 0.179 281.7) |
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 #837FFB | 3.28:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #837FFB | 6.39:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #837FFB text on white | 3.28:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #837FFB 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D3D6F9
oklch(88.5% 0.048 281.5)
-
Step 300
300
#B7BAF8
oklch(80.8% 0.087 282.1)
-
Step 400
400
#9394F5
oklch(70.7% 0.14 281.7)
-
Step 500
500 (this color)
#837FFB
oklch(65.9% 0.179 281.7)
-
Step 600
600
#665BE0
oklch(55.6% 0.195 281.7)
-
Step 700
700
#554AC2
oklch(49.1% 0.181 281.6)
-
Step 800
800
#453D9D
oklch(42.6% 0.151 281.7)
-
Step 900
900
#3A367D
oklch(37.8% 0.117 281.8)
-
Step 950
950
#212049
oklch(26.9% 0.074 281.3)
#837FFB 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) | #4592FF | 0.075 |
| Deuteranopia (no green cones) | #3D89F8 | 0.076 |
| Tritanopia (no blue cones) | #579AB1 | 0.155 |
| Achromatopsia (no color) | #8E8E8E | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837FFB
#837FFB
oklch(65.9% 0.179 281.7)
- #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 #837FFB, closest first.
No curated palette has a color within ΔE 0.04 of #837FFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.019
- Lavender Blue #8B88F8 ΔE 0.027
- Cornflower #6A79F7 ΔE 0.039
- Perrywinkle #8F8CE7 ΔE 0.052
- Soft Blue #6488EA ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.058
- Medium Purple #9370DB ΔE 0.058
- Periwinkle Blue #8F99FB ΔE 0.069
Use #837FFB 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.