#859FFA
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.1% 0.136 270.6), rgb(133, 159, 250).
Aa
Black text reads best on this color (8.33:1).
About this color
#859FFA is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.136 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.019 away. Black text reads best on it, at 8.33:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.33:1 |
| White text | 2.51:1 |
Values
| HEX | #859FFA |
| RGB | rgb(133, 159, 250) |
| HSL | hsl(227, 92%, 75%) |
| OKLCH | oklch(72.1% 0.136 270.6) |
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 #859FFA | 2.51:1 | Fails | Lc -54.4 | Large or bold text, headings |
| Black text on #859FFA | 8.33:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #859FFA text on white | 2.51:1 | Fails | Lc 49.3 | Large or bold text, headings |
| #859FFA text on black | 8.33:1 | AAA | Lc -52.7 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ACBEF8
oklch(80.8% 0.085 271.1)
-
Step 400
400 (this color)
#859FFA
oklch(72.1% 0.136 270.6)
-
Step 500
500
#637FF1
oklch(63.2% 0.173 270.4)
-
Step 600
600
#4C65E0
oklch(55.7% 0.189 270.4)
-
Step 700
700
#3E53C2
oklch(49.2% 0.174 270.5)
-
Step 800
800
#33449D
oklch(42.6% 0.146 270.8)
-
Step 900
900
#2C3B7D
oklch(37.8% 0.113 270.5)
-
Step 950
950
#1A2349
oklch(27.1% 0.071 270.9)
#859FFA 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) | #7DA9FE | 0.026 |
| Deuteranopia (no green cones) | #719EF8 | 0.024 |
| Tritanopia (no blue cones) | #58B2C1 | 0.121 |
| Achromatopsia (no color) | #A3A3A3 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859FFA
#859FFA
oklch(72.1% 0.136 270.6)
- #C5A028
#C5A028
oklch(72% 0.136 90.4)
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 #859FFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.019
- Perrywinkle #8F8CE7 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.052
- Lavender Blue #8B88F8 ΔE 0.058
- Carolina Blue #8AB8FE ΔE 0.066
- Chefchaouen Blue #4895EF ΔE 0.073
- Periwinkle #8E82FE ΔE 0.074
- Soft Blue #6488EA ΔE 0.077
Use #859FFA 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.