#8399E7
Closest named color: Periwinkle Blue (#8F99FB). oklch(69.8% 0.118 271.1), rgb(131, 153, 231).
Aa
Black text reads best on this color (7.67:1).
About this color
#8399E7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.118 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.034 away. Black text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #8399E7 |
| RGB | rgb(131, 153, 231) |
| HSL | hsl(227, 68%, 71%) |
| OKLCH | oklch(69.8% 0.118 271.1) |
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 #8399E7 | 2.73:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #8399E7 | 7.67:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #8399E7 text on white | 2.73:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #8399E7 text on black | 7.67:1 | AAA | Lc -49.0 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#AFBFF1
oklch(81% 0.073 270.9)
-
Step 400
400 (this color)
#8399E7
oklch(69.8% 0.118 271.1)
-
Step 500
500
#6981E4
oklch(63.1% 0.151 271.3)
-
Step 600
600
#5268D1
oklch(55.5% 0.163 271.3)
-
Step 700
700
#4356B5
oklch(49.1% 0.151 271.3)
-
Step 800
800
#374793
oklch(42.7% 0.126 271.2)
-
Step 900
900
#2F3C75
oklch(37.6% 0.098 271.3)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#8399E7 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) | #7DA1EA | 0.021 |
| Deuteranopia (no green cones) | #7498E5 | 0.019 |
| Tritanopia (no blue cones) | #60A9B5 | 0.106 |
| Achromatopsia (no color) | #9C9C9C | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8399E7
#8399E7
oklch(69.8% 0.118 271.1)
- #B99B3C
#B99B3C
oklch(69.9% 0.118 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 #8399E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.034
- Perrywinkle #8F8CE7 ΔE 0.036
- Cornflower Blue #6495ED ΔE 0.040
- Lavender Blue #8B88F8 ΔE 0.055
- Soft Blue #6488EA ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.064
- Periwinkle #8E82FE ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.076
Use #8399E7 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.