#837CEE
Closest named color: Periwinkle (#8E82FE). oklch(64.6% 0.166 283.5), rgb(131, 124, 238).
Aa
Black text reads best on this color (6.08:1).
About this color
#837CEE is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.166 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.032 away. Black text reads best on it, at 6.08:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.08:1 |
| White text | 3.45:1 |
Values
| HEX | #837CEE |
| RGB | rgb(131, 124, 238) |
| HSL | hsl(244, 77%, 71%) |
| OKLCH | oklch(64.6% 0.166 283.5) |
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 #837CEE | 3.45:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #837CEE | 6.08:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #837CEE text on white | 3.45:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #837CEE text on black | 6.08:1 | AA | Lc -39.8 | 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
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D4D6F7
oklch(88.5% 0.045 282.7)
-
Step 300
300
#B9BAF4
oklch(80.8% 0.082 283.6)
-
Step 400
400
#9695EE
oklch(70.7% 0.129 283.1)
-
Step 500
500 (this color)
#837CEE
oklch(64.6% 0.166 283.5)
-
Step 600
600
#6A5DD7
oklch(55.6% 0.18 283.7)
-
Step 700
700
#584CBB
oklch(49.1% 0.168 283.2)
-
Step 800
800
#483F97
oklch(42.7% 0.139 283.4)
-
Step 900
900
#3C3778
oklch(37.8% 0.107 283.5)
-
Step 950
950
#232146
oklch(27.1% 0.067 283.4)
#837CEE 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) | #4C8EF2 | 0.072 |
| Deuteranopia (no green cones) | #4686EB | 0.072 |
| Tritanopia (no blue cones) | #6094AA | 0.142 |
| Achromatopsia (no color) | #8A8A8A | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837CEE
#837CEE
oklch(64.6% 0.166 283.5)
- #9D9100
#9D9100
oklch(64.7% 0.136 103.7)
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 #837CEE, closest first.
No curated palette has a color within ΔE 0.04 of #837CEE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.032
- Lavender Blue #8B88F8 ΔE 0.034
- Cornflower #6A79F7 ΔE 0.038
- Medium Purple #9370DB ΔE 0.042
- Soft Blue #6488EA ΔE 0.048
- Perrywinkle #8F8CE7 ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.070
Use #837CEE 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.