#858EB5
Closest named color: Silver Lake Blue (#778DA9). oklch(65.4% 0.059 274.5), rgb(133, 142, 181).
Aa
Black text reads best on this color (6.53:1).
About this color
#858EB5 is a medium-light, muted blue. In OKLCH its lightness is 65%, its chroma 0.059 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.027 away. Black text reads best on it, at 6.53:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.53:1 |
| White text | 3.21:1 |
Values
| HEX | #858EB5 |
| RGB | rgb(133, 142, 181) |
| HSL | hsl(229, 24%, 62%) |
| OKLCH | oklch(65.4% 0.059 274.5) |
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 #858EB5 | 3.21:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #858EB5 | 6.53:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #858EB5 text on white | 3.21:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #858EB5 text on black | 6.53:1 | AA | Lc -42.4 | 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
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D9E4
oklch(88.6% 0.015 273.8)
-
Step 300
300
#BBC0D4
oklch(81% 0.029 274.6)
-
Step 400
400
#979FBE
oklch(70.7% 0.046 273.8)
-
Step 500
500 (this color)
#858EB5
oklch(65.4% 0.059 274.5)
-
Step 600
600
#687199
oklch(55.7% 0.063 274.4)
-
Step 700
700
#565E83
oklch(49% 0.06 274.6)
-
Step 800
800
#474D6A
oklch(42.7% 0.049 275.1)
-
Step 900
900
#3B4056
oklch(37.6% 0.038 274.5)
-
Step 950
950
#232633
oklch(27.1% 0.025 274.5)
#858EB5 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) | #8392B7 | 0.011 |
| Deuteranopia (no green cones) | #7F8EB4 | 0.008 |
| Tritanopia (no blue cones) | #79959B | 0.053 |
| Achromatopsia (no color) | #8F8F8F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858EB5
#858EB5
oklch(65.4% 0.059 274.5)
- #9C9067
#9C9067
oklch(65.4% 0.059 93.7)
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 #858EB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.027
- Blue Grey #758DA3 ΔE 0.036
- Cool Gray #8D99AE ΔE 0.038
- Faded Blue #658CBB ΔE 0.042
- Light Slate Gray #778899 ΔE 0.048
- Heather #A484AC ΔE 0.050
- Lavender Gray #7E7F9A ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.054
Use #858EB5 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.