#837CEA
Closest named color: Periwinkle (#8E82FE). oklch(64.3% 0.16 283.8), rgb(131, 124, 234).
Aa
Black text reads best on this color (6.03:1).
About this color
#837CEA is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.160 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.036 away. Black text reads best on it, at 6.03:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.03:1 |
| White text | 3.47:1 |
Values
| HEX | #837CEA |
| RGB | rgb(131, 124, 234) |
| HSL | hsl(244, 72%, 70%) |
| OKLCH | oklch(64.3% 0.16 283.8) |
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 #837CEA | 3.47:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #837CEA | 6.03:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #837CEA text on white | 3.47:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #837CEA text on black | 6.03:1 | AA | Lc -39.5 | 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
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D5D6F6
oklch(88.5% 0.044 284)
-
Step 300
300
#BABAF2
oklch(80.8% 0.079 284.5)
-
Step 400
400
#9795EC
oklch(70.7% 0.126 283.7)
-
Step 500
500 (this color)
#837CEA
oklch(64.3% 0.16 283.8)
-
Step 600
600
#6A5ED4
oklch(55.5% 0.175 283.7)
-
Step 700
700
#594DB8
oklch(49.2% 0.163 283.7)
-
Step 800
800
#484095
oklch(42.7% 0.135 283.4)
-
Step 900
900
#3C3776
oklch(37.7% 0.104 283.8)
-
Step 950
950
#232145
oklch(27% 0.065 283.6)
#837CEA 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) | #4F8DEE | 0.069 |
| Deuteranopia (no green cones) | #4A86E8 | 0.069 |
| Tritanopia (no blue cones) | #6293A8 | 0.137 |
| Achromatopsia (no color) | #898989 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837CEA
#837CEA
oklch(64.3% 0.16 283.8)
- #9C9000
#9C9000
oklch(64.4% 0.136 103.6)
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 #837CEA, closest first.
No curated palette has a color within ΔE 0.04 of #837CEA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.036
- Lavender Blue #8B88F8 ΔE 0.037
- Medium Purple #9370DB ΔE 0.039
- Cornflower #6A79F7 ΔE 0.041
- Soft Blue #6488EA ΔE 0.047
- Perrywinkle #8F8CE7 ΔE 0.047
- Medium Slate Blue #7B68EE ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.069
Use #837CEA 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.