#858D9E
Closest named color: Blue Grey (#758DA3). oklch(64.3% 0.027 265.5), rgb(133, 141, 158).
Aa
Black text reads best on this color (6.30:1).
About this color
#858D9E is a medium-light close to neutral grey. In OKLCH its lightness is 64%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Blue Grey (#758DA3), ΔE 0.022 away. Black text reads best on it, at 6.30:1.
| Hue family | Neutrals |
| Lightness | medium-light (64%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.30:1 |
| White text | 3.33:1 |
Values
| HEX | #858D9E |
| RGB | rgb(133, 141, 158) |
| HSL | hsl(221, 11%, 57%) |
| OKLCH | oklch(64.3% 0.027 265.5) |
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 #858D9E | 3.33:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #858D9E | 6.30:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #858D9E text on white | 3.33:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #858D9E text on black | 6.30:1 | AA | Lc -40.9 | 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
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D7D9DE
oklch(88.5% 0.007 268.5)
-
Step 300
300
#BCC1C9
oklch(80.9% 0.013 259.8)
-
Step 400
400
#9AA1AE
oklch(70.8% 0.021 263)
-
Step 500
500 (this color)
#858D9E
oklch(64.3% 0.027 265.5)
-
Step 600
600
#6B7385
oklch(55.5% 0.03 266.4)
-
Step 700
700
#596171
oklch(49.2% 0.028 264.3)
-
Step 800
800
#494F5C
oklch(42.7% 0.023 265.8)
-
Step 900
900
#3D424B
oklch(37.8% 0.017 262.3)
-
Step 950
950
#24262C
oklch(26.9% 0.012 271)
#858D9E 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) | #888E9F | 0.005 |
| Deuteranopia (no green cones) | #868C9E | 0.003 |
| Tritanopia (no blue cones) | #7F9092 | 0.024 |
| Achromatopsia (no color) | #8D8D8D | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858D9E
#858D9E
oklch(64.3% 0.027 265.5)
- #948C7B
#948C7B
oklch(64.2% 0.026 85.8)
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 #858D9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.022
- Silver Lake Blue #778DA9 ΔE 0.024
- Light Slate Gray #778899 ΔE 0.026
- Steel #738595 ΔE 0.037
- Cool Gray #8D99AE ΔE 0.039
- Lavender Gray #7E7F9A ΔE 0.041
- Warm Grey #978A84 ΔE 0.043
- Purpley Grey #947E94 ΔE 0.043
Use #858D9E 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.