#8599EC
Closest named color: Periwinkle Blue (#8F99FB). oklch(70.2% 0.124 272.6), rgb(133, 153, 236).
Aa
Black text reads best on this color (7.76:1).
About this color
#8599EC is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.124 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.026 away. Black text reads best on it, at 7.76:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.76:1 |
| White text | 2.70:1 |
Values
| HEX | #8599EC |
| RGB | rgb(133, 153, 236) |
| HSL | hsl(228, 73%, 72%) |
| OKLCH | oklch(70.2% 0.124 272.6) |
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 #8599EC | 2.70:1 | Fails | Lc -57.6 | Large or bold text, headings |
| Black text on #8599EC | 7.76:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #8599EC text on white | 2.70:1 | Fails | Lc 52.4 | Large or bold text, headings |
| #8599EC text on black | 7.76:1 | AAA | Lc -49.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF3
oklch(80.9% 0.077 272.3)
-
Step 400
400 (this color)
#8599EC
oklch(70.2% 0.124 272.6)
-
Step 500
500
#6A7FE8
oklch(63% 0.159 272.6)
-
Step 600
600
#5466D6
oklch(55.6% 0.172 272.7)
-
Step 700
700
#4454BA
oklch(49.1% 0.161 272.4)
-
Step 800
800
#384596
oklch(42.6% 0.133 272.6)
-
Step 900
900
#303B78
oklch(37.7% 0.104 272.8)
-
Step 950
950
#1C2346
oklch(27% 0.065 272.8)
#8599EC 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) | #7BA2EF | 0.024 |
| Deuteranopia (no green cones) | #7299EA | 0.023 |
| Tritanopia (no blue cones) | #61AAB7 | 0.111 |
| Achromatopsia (no color) | #9D9D9D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8599EC
#8599EC
oklch(70.2% 0.124 272.6)
- #BA9C35
#BA9C35
oklch(70.1% 0.124 92.4)
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 #8599EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.026
- Perrywinkle #8F8CE7 ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.041
- Lavender Blue #8B88F8 ΔE 0.050
- Soft Blue #6488EA ΔE 0.064
- Chefchaouen Blue #4895EF ΔE 0.066
- Periwinkle #8E82FE ΔE 0.068
- Pale Purple #B790D4 ΔE 0.077
Use #8599EC 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.