#285166
Closest named color: Dark Grey Blue (#29465B). oklch(41.5% 0.058 232.8), rgb(40, 81, 102).
Aa
White text reads best on this color (8.53:1).
About this color
#285166 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.058 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.036 away. White text reads best on it, at 8.53:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.45:1 |
| White text | 8.53:1 |
Values
| HEX | #285166 |
| RGB | rgb(40, 81, 102) |
| HSL | hsl(200, 44%, 28%) |
| OKLCH | oklch(41.5% 0.058 232.8) |
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 #285166 | 8.53:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #285166 | 2.45:1 | Fails | Lc 14.8 | Not readable |
| #285166 text on white | 8.53:1 | AAA | Lc 89.2 | Fine for body text |
| #285166 text on black | 2.45:1 | Fails | Lc -13.0 | Not readable |
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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE4
oklch(88.6% 0.019 232.5)
-
Step 300
300
#ACC5D3
oklch(80.9% 0.034 232.3)
-
Step 400
400
#7FA7BD
oklch(70.7% 0.054 232.6)
-
Step 500
500
#5D91AD
oklch(63.1% 0.07 233)
-
Step 600
600
#427B98
oklch(55.6% 0.075 232.5)
-
Step 700
700
#336782
oklch(49% 0.07 233.4)
-
Step 800
800 (this color)
#285166
oklch(41.5% 0.058 232.8)
-
Step 900
900
#284656
oklch(37.8% 0.045 233)
-
Step 950
950
#182932
oklch(27% 0.028 232.3)
#285166 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) | #475067 | 0.039 |
| Deuteranopia (no green cones) | #3E4A66 | 0.032 |
| Tritanopia (no blue cones) | #005758 | 0.042 |
| Achromatopsia (no color) | #4C4C4C | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285166
#285166
oklch(41.5% 0.058 232.8)
- #65432D
#65432D
oklch(41.6% 0.058 53.4)
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 #285166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.036
- Deep Teal #00555A ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.038
- Charcoal #264653 ΔE 0.042
- Petrol #005F6A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
- Dark Teal #014D4E ΔE 0.051
Use #285166 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.