#818FD2
Closest named color: Perrywinkle (#8F8CE7). oklch(66.6% 0.101 274.3), rgb(129, 143, 210).
Aa
Black text reads best on this color (6.79:1).
About this color
#818FD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.101 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.040 away. Black text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 6.79:1 |
| White text | 3.09:1 |
Values
| HEX | #818FD2 |
| RGB | rgb(129, 143, 210) |
| HSL | hsl(230, 47%, 66%) |
| OKLCH | oklch(66.6% 0.101 274.3) |
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 #818FD2 | 3.09:1 | AA large text | Lc -63.2 | Content text, not long reading |
| Black text on #818FD2 | 6.79:1 | AA | Lc 46.3 | Large or bold text, headings |
| #818FD2 text on white | 3.09:1 | AA large text | Lc 57.8 | Large or bold text, headings |
| #818FD2 text on black | 6.79:1 | AA | Lc -43.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B6BFE1
oklch(80.9% 0.049 273.6)
-
Step 400
400
#919DD2
oklch(70.6% 0.079 274.3)
-
Step 500
500 (this color)
#818FD2
oklch(66.6% 0.101 274.3)
-
Step 600
600
#606DB3
oklch(55.6% 0.11 274.3)
-
Step 700
700
#4F5B9A
oklch(49.1% 0.102 273.9)
-
Step 800
800
#414A7D
oklch(42.6% 0.085 274.6)
-
Step 900
900
#373E64
oklch(37.6% 0.066 274.9)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#818FD2 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) | #7996D5 | 0.020 |
| Deuteranopia (no green cones) | #738FD0 | 0.018 |
| Tritanopia (no blue cones) | #689CA7 | 0.090 |
| Achromatopsia (no color) | #939393 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818FD2
#818FD2
oklch(66.6% 0.101 274.3)
- #A89345
#A89345
oklch(66.6% 0.101 94.4)
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 #818FD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.049
- Faded Blue #658CBB ΔE 0.052
- Soft Blue #6488EA ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.064
- Lavender Blue #8B88F8 ΔE 0.065
- Periwinkle Blue #8F99FB ΔE 0.066
- Chefchaouen Blue #4895EF ΔE 0.069
Use #818FD2 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.