#858D9C
Closest named color: Blue Grey (#758DA3). oklch(64.2% 0.024 263.1), rgb(133, 141, 156).
Aa
Black text reads best on this color (6.28:1).
About this color
#858D9C is a medium-light close to neutral grey. In OKLCH its lightness is 64%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Blue Grey (#758DA3), ΔE 0.023 away. Black text reads best on it, at 6.28:1.
| Hue family | Neutrals |
| Lightness | medium-light (64%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.28:1 |
| White text | 3.34:1 |
Values
| HEX | #858D9C |
| RGB | rgb(133, 141, 156) |
| HSL | hsl(219, 10%, 57%) |
| OKLCH | oklch(64.2% 0.024 263.1) |
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 #858D9C | 3.34:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #858D9C | 6.28:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #858D9C text on white | 3.34:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #858D9C text on black | 6.28:1 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
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
#BDC1C8
oklch(81% 0.011 261.8)
-
Step 400
400
#9AA1AD
oklch(70.7% 0.019 261.3)
-
Step 500
500 (this color)
#858D9C
oklch(64.2% 0.024 263.1)
-
Step 600
600
#6B7483
oklch(55.7% 0.026 260.7)
-
Step 700
700
#59616F
oklch(49.1% 0.025 261.7)
-
Step 800
800
#494F5A
oklch(42.6% 0.02 262.6)
-
Step 900
900
#3D424A
oklch(37.7% 0.015 259.8)
-
Step 950
950
#24262B
oklch(26.9% 0.01 268.3)
#858D9C 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) | #888E9D | 0.005 |
| Deuteranopia (no green cones) | #868C9C | 0.003 |
| Tritanopia (no blue cones) | #809092 | 0.021 |
| Achromatopsia (no color) | #8D8D8D | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #858D9C
#858D9C
oklch(64.2% 0.024 263.1)
- #948C7C
#948C7C
oklch(64.2% 0.025 84.6)
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 #858D9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.023
- Light Slate Gray #778899 ΔE 0.025
- Silver Lake Blue #778DA9 ΔE 0.026
- Steel #738595 ΔE 0.036
- Cool Gray #8D99AE ΔE 0.040
- Warm Grey #978A84 ΔE 0.040
- Lavender Gray #7E7F9A ΔE 0.042
- Purpley Grey #947E94 ΔE 0.043
Use #858D9C 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.