#818EDD
Closest named color: Perrywinkle (#8F8CE7). oklch(66.9% 0.118 275.6), rgb(129, 142, 221).
Aa
Black text reads best on this color (6.84:1).
About this color
#818EDD is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.118 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.026 away. Black text reads best on it, at 6.84:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 6.84:1 |
| White text | 3.06:1 |
Values
| HEX | #818EDD |
| RGB | rgb(129, 142, 221) |
| HSL | hsl(232, 58%, 69%) |
| OKLCH | oklch(66.9% 0.118 275.6) |
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 #818EDD | 3.06:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #818EDD | 6.84:1 | AA | Lc 46.6 | Large or bold text, headings |
| #818EDD text on white | 3.06:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #818EDD text on black | 6.84:1 | AA | Lc -44.3 | 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 400.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D1D8F5
oklch(88.6% 0.041 274.8)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400 (this color)
#818EDD
oklch(66.9% 0.118 275.6)
-
Step 500
500
#717EE3
oklch(63% 0.151 275.6)
-
Step 600
600
#5B65D1
oklch(55.5% 0.164 275.7)
-
Step 700
700
#4B54B5
oklch(49.2% 0.152 275.3)
-
Step 800
800
#3E4592
oklch(42.7% 0.125 275.8)
-
Step 900
900
#343B75
oklch(37.8% 0.098 275.5)
-
Step 950
950
#1E2344
oklch(27% 0.061 275)
#818EDD 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) | #7397E0 | 0.027 |
| Deuteranopia (no green cones) | #6C90DB | 0.026 |
| Tritanopia (no blue cones) | #639EAB | 0.105 |
| Achromatopsia (no color) | #939393 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818EDD
#818EDD
oklch(66.9% 0.118 275.6)
- #AB9432
#AB9432
oklch(66.9% 0.118 95.7)
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 #818EDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.026
- Cornflower Blue #6495ED ΔE 0.040
- Soft Blue #6488EA ΔE 0.046
- Lavender Blue #8B88F8 ΔE 0.048
- Periwinkle Blue #8F99FB ΔE 0.053
- Chefchaouen Blue #4895EF ΔE 0.063
- Faded Blue #658CBB ΔE 0.064
- Periwinkle #8E82FE ΔE 0.065
Use #818EDD 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.