#818EEE
Closest named color: Perrywinkle (#8F8CE7). oklch(67.8% 0.142 276.1), rgb(129, 142, 238).
Aa
Black text reads best on this color (7.03:1).
About this color
#818EEE is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.142 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.021 away. Black text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 7.03:1 |
| White text | 2.98:1 |
Values
| HEX | #818EEE |
| RGB | rgb(129, 142, 238) |
| HSL | hsl(233, 76%, 72%) |
| OKLCH | oklch(67.8% 0.142 276.1) |
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 #818EEE | 2.98:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #818EEE | 7.03:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #818EEE text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #818EEE text on black | 7.03:1 | AAA | Lc -45.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCFA
oklch(80.9% 0.089 276.4)
-
Step 400
400 (this color)
#818EEE
oklch(67.8% 0.142 276.1)
-
Step 500
500
#6F7AF4
oklch(63.2% 0.18 276.1)
-
Step 600
600
#595FE3
oklch(55.6% 0.197 276)
-
Step 700
700
#4A4DC5
oklch(49% 0.183 276.2)
-
Step 800
800
#3C40A0
oklch(42.7% 0.153 276)
-
Step 900
900
#33387F
oklch(37.8% 0.118 276.1)
-
Step 950
950
#1D214A
oklch(26.9% 0.075 275.9)
#818EEE 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) | #6A9AF2 | 0.038 |
| Deuteranopia (no green cones) | #6191EC | 0.038 |
| Tritanopia (no blue cones) | #5AA2B2 | 0.126 |
| Achromatopsia (no color) | #959595 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818EEE
#818EEE
oklch(67.8% 0.142 276.1)
- #B19600
#B19600
oklch(67.7% 0.139 96.2)
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 #818EEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.021
- Lavender Blue #8B88F8 ΔE 0.026
- Cornflower Blue #6495ED ΔE 0.037
- Periwinkle Blue #8F99FB ΔE 0.038
- Soft Blue #6488EA ΔE 0.041
- Periwinkle #8E82FE ΔE 0.044
- Chefchaouen Blue #4895EF ΔE 0.060
- Cornflower #6A79F7 ΔE 0.067
Use #818EEE 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.