#8399EA
Closest named color: Periwinkle Blue (#8F99FB). oklch(69.9% 0.122 271.4), rgb(131, 153, 234).
Aa
Black text reads best on this color (7.70:1).
About this color
#8399EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.122 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.030 away. Black text reads best on it, at 7.70:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #8399EA |
| RGB | rgb(131, 153, 234) |
| HSL | hsl(227, 71%, 72%) |
| OKLCH | oklch(69.9% 0.122 271.4) |
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 #8399EA | 2.72:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #8399EA | 7.70:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #8399EA text on white | 2.72:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #8399EA text on black | 7.70:1 | AAA | Lc -49.2 | 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)
#8399EA
oklch(69.9% 0.122 271.4)
-
Step 500
500
#6880E7
oklch(63% 0.157 271.4)
-
Step 600
600
#5167D5
oklch(55.5% 0.17 271.3)
-
Step 700
700
#4355B8
oklch(49.1% 0.157 271.7)
-
Step 800
800
#374695
oklch(42.7% 0.13 271.7)
-
Step 900
900
#2F3C77
oklch(37.8% 0.101 271.4)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#8399EA 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) | #7CA1ED | 0.021 |
| Deuteranopia (no green cones) | #7399E8 | 0.020 |
| Tritanopia (no blue cones) | #5FAAB7 | 0.109 |
| Achromatopsia (no color) | #9D9D9D | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8399EA
#8399EA
oklch(69.9% 0.122 271.4)
- #BA9B37
#BA9B37
oklch(69.9% 0.122 91.4)
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 #8399EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.030
- Perrywinkle #8F8CE7 ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.039
- Lavender Blue #8B88F8 ΔE 0.052
- Soft Blue #6488EA ΔE 0.062
- Chefchaouen Blue #4895EF ΔE 0.064
- Periwinkle #8E82FE ΔE 0.070
- Dark Sky Blue #448EE4 ΔE 0.077
Use #8399EA 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.