#285178
Closest named color: Light Navy (#155084). oklch(42.4% 0.08 249.2), rgb(40, 81, 120).
Aa
White text reads best on this color (8.27:1).
About this color
#285178 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.080 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.025 away. White text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #285178 |
| RGB | rgb(40, 81, 120) |
| HSL | hsl(209, 50%, 31%) |
| OKLCH | oklch(42.4% 0.08 249.2) |
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 #285178 | 8.27:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #285178 | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #285178 text on white | 8.27:1 | AAA | Lc 88.4 | Fine for body text |
| #285178 text on black | 2.53:1 | Fails | Lc -13.8 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#AAC4DE
oklch(80.9% 0.046 248.4)
-
Step 400
400
#7CA5CE
oklch(70.7% 0.075 248.9)
-
Step 500
500
#5A8EC1
oklch(63.1% 0.095 249.1)
-
Step 600
600
#3E77AD
oklch(55.5% 0.104 249.1)
-
Step 700
700
#306495
oklch(49.1% 0.097 249.2)
-
Step 800
800 (this color)
#285178
oklch(42.4% 0.08 249.2)
-
Step 900
900
#264461
oklch(37.7% 0.062 249)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#285178 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) | #40537A | 0.030 |
| Deuteranopia (no green cones) | #354B77 | 0.021 |
| Tritanopia (no blue cones) | #005A5F | 0.062 |
| Achromatopsia (no color) | #4E4E4E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285178
#285178
oklch(42.4% 0.08 249.2)
- #6A4515
#6A4515
oklch(42.4% 0.08 69)
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 #285178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.025
- Dusk Blue #26538D ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.043
- Cobalt #1E488F ΔE 0.052
- Twilight Blue #0A437A ΔE 0.052
- Dusk #4E5481 ΔE 0.052
Use #285178 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.