#858FBE
Closest named color: Silver Lake Blue (#778DA9). oklch(66% 0.071 275), rgb(133, 143, 190).
Aa
Black text reads best on this color (6.66:1).
About this color
#858FBE is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.071 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.038 away. Black text reads best on it, at 6.66:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.66:1 |
| White text | 3.14:1 |
Values
| HEX | #858FBE |
| RGB | rgb(133, 143, 190) |
| HSL | hsl(229, 30%, 63%) |
| OKLCH | oklch(66% 0.071 275) |
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 #858FBE | 3.14:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #858FBE | 6.66:1 | AA | Lc 45.5 | Large or bold text, headings |
| #858FBE text on white | 3.14:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #858FBE text on black | 6.66:1 | AA | Lc -43.2 | 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
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#BABFD8
oklch(80.9% 0.036 276.6)
-
Step 400
400
#969EC4
oklch(70.6% 0.056 275.6)
-
Step 500
500 (this color)
#858FBE
oklch(66% 0.071 275)
-
Step 600
600
#6670A1
oklch(55.7% 0.077 274.8)
-
Step 700
700
#555D8A
oklch(49.1% 0.073 275.7)
-
Step 800
800
#454C70
oklch(42.6% 0.061 275.1)
-
Step 900
900
#3A405A
oklch(37.7% 0.045 274)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#858FBE 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) | #8193C0 | 0.011 |
| Deuteranopia (no green cones) | #7D8FBD | 0.011 |
| Tritanopia (no blue cones) | #76989F | 0.064 |
| Achromatopsia (no color) | #919191 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858FBE
#858FBE
oklch(66% 0.071 275)
- #A0925F
#A0925F
oklch(66% 0.071 94.6)
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 #858FBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.038
- Faded Blue #658CBB ΔE 0.043
- Cool Gray #8D99AE ΔE 0.044
- Blue Grey #758DA3 ΔE 0.048
- Heather #A484AC ΔE 0.053
- Greyblue #77A1B5 ΔE 0.058
- Bluey Grey #89A0B0 ΔE 0.059
- Light Slate Gray #778899 ΔE 0.060
Use #858FBE 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.