#858BF9
Closest named color: Lavender Blue (#8B88F8). oklch(68.2% 0.16 278.9), rgb(133, 139, 249).
Aa
Black text reads best on this color (7.05:1).
About this color
#858BF9 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.160 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Blue (#8B88F8), ΔE 0.010 away. Black text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Lavender Blue (#8B88F8) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #858BF9 |
| RGB | rgb(133, 139, 249) |
| HSL | hsl(237, 91%, 75%) |
| OKLCH | oklch(68.2% 0.16 278.9) |
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 #858BF9 | 2.97:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #858BF9 | 7.05:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #858BF9 text on white | 2.97:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #858BF9 text on black | 7.05:1 | AAA | Lc -45.6 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FE
oklch(93.5% 0.03 279.6)
-
Step 200
200
#D0D6FE
oklch(88.4% 0.055 278.5)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400 (this color)
#858BF9
oklch(68.2% 0.16 278.9)
-
Step 500
500
#7474FF
oklch(63.2% 0.201 278.9)
-
Step 600
600
#5F56F0
oklch(55.5% 0.223 278.9)
-
Step 700
700
#4F45D1
oklch(49.1% 0.207 278.8)
-
Step 800
800
#403AA9
oklch(42.7% 0.171 278.7)
-
Step 900
900
#363486
oklch(37.8% 0.133 279)
-
Step 950
950
#1F1F4E
oklch(26.9% 0.084 279.1)
#858BF9 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) | #5F9AFD | 0.053 |
| Deuteranopia (no green cones) | #5691F7 | 0.054 |
| Tritanopia (no blue cones) | #5BA2B6 | 0.140 |
| Achromatopsia (no color) | #969696 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858BF9
#858BF9
oklch(68.2% 0.16 278.9)
- #AF9900
#AF9900
oklch(68.2% 0.141 98.9)
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 #858BF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Blue #8B88F8 ΔE 0.010
- Periwinkle #8E82FE ΔE 0.026
- Perrywinkle #8F8CE7 ΔE 0.030
- Periwinkle Blue #8F99FB ΔE 0.039
- Soft Blue #6488EA ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.050
- Cornflower #6A79F7 ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.070
Use #858BF9 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.