#858DA5
Closest named color: Silver Lake Blue (#778DA9). oklch(64.5% 0.037 270.8), rgb(133, 141, 165).
Aa
Black text reads best on this color (6.35:1).
About this color
#858DA5 is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.037 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.019 away. Black text reads best on it, at 6.35:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.35:1 |
| White text | 3.30:1 |
Values
| HEX | #858DA5 |
| RGB | rgb(133, 141, 165) |
| HSL | hsl(225, 15%, 58%) |
| OKLCH | oklch(64.5% 0.037 270.8) |
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 #858DA5 | 3.30:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #858DA5 | 6.35:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #858DA5 text on white | 3.30:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #858DA5 text on black | 6.35:1 | AA | Lc -41.2 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BCC0CD
oklch(80.9% 0.019 272.3)
-
Step 400
400
#9AA0B3
oklch(70.7% 0.028 271.7)
-
Step 500
500 (this color)
#858DA5
oklch(64.5% 0.037 270.8)
-
Step 600
600
#6A728C
oklch(55.5% 0.042 271.6)
-
Step 700
700
#596077
oklch(49.2% 0.038 271.7)
-
Step 800
800
#484E60
oklch(42.6% 0.031 270.6)
-
Step 900
900
#3D414F
oklch(37.7% 0.025 272.6)
-
Step 950
950
#24262E
oklch(27% 0.015 274.3)
#858DA5 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) | #868FA6 | 0.006 |
| Deuteranopia (no green cones) | #848CA4 | 0.003 |
| Tritanopia (no blue cones) | #7D9195 | 0.033 |
| Achromatopsia (no color) | #8D8D8D | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858DA5
#858DA5
oklch(64.5% 0.037 270.8)
- #968D74
#968D74
oklch(64.4% 0.037 90.6)
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 #858DA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.019
- Blue Grey #758DA3 ΔE 0.022
- Light Slate Gray #778899 ΔE 0.030
- Cool Gray #8D99AE ΔE 0.036
- Steel #738595 ΔE 0.041
- Lavender Gray #7E7F9A ΔE 0.041
- Purpley Grey #947E94 ΔE 0.044
- Faded Blue #658CBB ΔE 0.052
Use #858DA5 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.