#858BBF
Closest named color: Silver Lake Blue (#778DA9). oklch(65.2% 0.078 278.9), rgb(133, 139, 191).
Aa
Black text reads best on this color (6.44:1).
About this color
#858BBF is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.078 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.042 away. Black text reads best on it, at 6.44:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.44:1 |
| White text | 3.25:1 |
Values
| HEX | #858BBF |
| RGB | rgb(133, 139, 191) |
| HSL | hsl(234, 31%, 64%) |
| OKLCH | oklch(65.2% 0.078 278.9) |
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 #858BBF | 3.25:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #858BBF | 6.44:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #858BBF text on white | 3.25:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #858BBF text on black | 6.44:1 | AA | Lc -41.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E7
oklch(88.5% 0.021 279.9)
-
Step 300
300
#BBBFDA
oklch(81% 0.038 278.8)
-
Step 400
400
#989DC7
oklch(70.7% 0.062 279.4)
-
Step 500
500 (this color)
#858BBF
oklch(65.2% 0.078 278.9)
-
Step 600
600
#686EA4
oklch(55.6% 0.084 278.4)
-
Step 700
700
#575C8D
oklch(49.2% 0.078 278.6)
-
Step 800
800
#474B72
oklch(42.7% 0.065 278.8)
-
Step 900
900
#3C3F5C
oklch(37.8% 0.05 279.2)
-
Step 950
950
#232536
oklch(27% 0.032 278.9)
#858BBF 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) | #7C91C1 | 0.019 |
| Deuteranopia (no green cones) | #798CBE | 0.016 |
| Tritanopia (no blue cones) | #76959D | 0.070 |
| Achromatopsia (no color) | #8E8E8E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858BBF
#858BBF
oklch(65.2% 0.078 278.9)
- #9B9158
#9B9158
oklch(65.2% 0.078 99.5)
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 #858BBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.042
- Faded Blue #658CBB ΔE 0.042
- Blue Grey #758DA3 ΔE 0.051
- Heather #A484AC ΔE 0.052
- Cool Gray #8D99AE ΔE 0.055
- Lavender Gray #7E7F9A ΔE 0.060
- Light Slate Gray #778899 ΔE 0.062
- Wisteria #A87DC2 ΔE 0.062
Use #858BBF 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.