#818BF2
Closest named color: Lavender Blue (#8B88F8). oklch(67.5% 0.151 277.3), rgb(129, 139, 242).
Aa
Black text reads best on this color (6.90:1).
About this color
#818BF2 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.151 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Blue (#8B88F8), ΔE 0.018 away. Black text reads best on it, at 6.90:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Lavender Blue (#8B88F8) |
| Black text | 6.90:1 |
| White text | 3.03:1 |
Values
| HEX | #818BF2 |
| RGB | rgb(129, 139, 242) |
| HSL | hsl(235, 81%, 73%) |
| OKLCH | oklch(67.5% 0.151 277.3) |
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 #818BF2 | 3.03:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #818BF2 | 6.90:1 | AA | Lc 47.0 | Large or bold text, headings |
| #818BF2 text on white | 3.03:1 | AA large text | Lc 57.0 | Large or bold text, headings |
| #818BF2 text on black | 6.90:1 | AA | Lc -44.7 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FD
oklch(93.7% 0.027 276.8)
-
Step 200
200
#D0D7FC
oklch(88.6% 0.052 276.9)
-
Step 300
300
#B1BBFE
oklch(80.9% 0.095 277.5)
-
Step 400
400 (this color)
#818BF2
oklch(67.5% 0.151 277.3)
-
Step 500
500
#7177FB
oklch(63.2% 0.193 277.4)
-
Step 600
600
#5C5BEA
oklch(55.7% 0.21 277.4)
-
Step 700
700
#4C49CC
oklch(49.1% 0.196 277.3)
-
Step 800
800
#3E3DA5
oklch(42.7% 0.163 277.4)
-
Step 900
900
#343682
oklch(37.7% 0.125 277.4)
-
Step 950
950
#1E204C
oklch(26.9% 0.08 277.6)
#818BF2 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) | #6298F6 | 0.045 |
| Deuteranopia (no green cones) | #5990F0 | 0.047 |
| Tritanopia (no blue cones) | #58A1B3 | 0.134 |
| Achromatopsia (no color) | #949494 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818BF2
#818BF2
oklch(67.5% 0.151 277.3)
- #AF9600
#AF9600
oklch(67.5% 0.139 97.2)
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 #818BF2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Blue #8B88F8 ΔE 0.018
- Perrywinkle #8F8CE7 ΔE 0.026
- Periwinkle #8E82FE ΔE 0.034
- Soft Blue #6488EA ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.042
- Periwinkle Blue #8F99FB ΔE 0.043
- Cornflower #6A79F7 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.063
Use #818BF2 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.