#858DBB
Closest named color: Silver Lake Blue (#778DA9). oklch(65.4% 0.069 276.7), rgb(133, 141, 187).
Aa
Black text reads best on this color (6.52:1).
About this color
#858DBB is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.069 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.035 away. Black text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.52:1 |
| White text | 3.21:1 |
Values
| HEX | #858DBB |
| RGB | rgb(133, 141, 187) |
| HSL | hsl(231, 28%, 63%) |
| OKLCH | oklch(65.4% 0.069 276.7) |
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 #858DBB | 3.21:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #858DBB | 6.52:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #858DBB text on white | 3.21:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #858DBB text on black | 6.52:1 | AA | Lc -42.3 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
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
#BABFD7
oklch(80.8% 0.034 276.3)
-
Step 400
400
#979EC3
oklch(70.7% 0.055 276.5)
-
Step 500
500 (this color)
#858DBB
oklch(65.4% 0.069 276.7)
-
Step 600
600
#686F9F
oklch(55.5% 0.075 277.3)
-
Step 700
700
#565D88
oklch(49.1% 0.069 276.4)
-
Step 800
800
#474C6F
oklch(42.7% 0.058 277.4)
-
Step 900
900
#3B405A
oklch(37.8% 0.045 275.6)
-
Step 950
950
#232534
oklch(26.9% 0.028 278.4)
#858DBB 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) | #8092BD | 0.014 |
| Deuteranopia (no green cones) | #7C8DBA | 0.012 |
| Tritanopia (no blue cones) | #77969D | 0.062 |
| Achromatopsia (no color) | #8F8F8F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858DBB
#858DBB
oklch(65.4% 0.069 276.7)
- #9C915F
#9C915F
oklch(65.4% 0.07 97.3)
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 #858DBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.035
- Faded Blue #658CBB ΔE 0.041
- Blue Grey #758DA3 ΔE 0.044
- Cool Gray #8D99AE ΔE 0.046
- Heather #A484AC ΔE 0.050
- Light Slate Gray #778899 ΔE 0.056
- Lavender Gray #7E7F9A ΔE 0.057
- Greyblue #77A1B5 ΔE 0.061
Use #858DBB 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.