#305178
Closest named color: Light Navy (#155084). oklch(42.8% 0.076 253.6), rgb(48, 81, 120).
Aa
White text reads best on this color (8.15:1).
About this color
#305178 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.076 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.030 away. White text reads best on it, at 8.15:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #305178 |
| RGB | rgb(48, 81, 120) |
| HSL | hsl(213, 43%, 33%) |
| OKLCH | oklch(42.8% 0.076 253.6) |
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 #305178 | 8.15:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #305178 | 2.57:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #305178 text on white | 8.15:1 | AAA | Lc 88.1 | Fine for body text |
| #305178 text on black | 2.57:1 | Fails | Lc -14.1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#82A3CC
oklch(70.6% 0.071 254.1)
-
Step 500
500
#628CBF
oklch(63% 0.09 253.9)
-
Step 600
600
#4876AC
oklch(55.7% 0.099 253.4)
-
Step 700
700
#396393
oklch(49.2% 0.091 252.9)
-
Step 800
800 (this color)
#305178
oklch(42.8% 0.076 253.6)
-
Step 900
900
#2A4360
oklch(37.6% 0.059 253)
-
Step 950
950
#192738
oklch(26.9% 0.037 253.8)
#305178 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) | #41537A | 0.023 |
| Deuteranopia (no green cones) | #374C77 | 0.016 |
| Tritanopia (no blue cones) | #005A5F | 0.065 |
| Achromatopsia (no color) | #4F4F4F | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305178
#305178
oklch(42.8% 0.076 253.6)
- #684819
#684819
oklch(42.8% 0.076 73.3)
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 #305178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.033
- Dusk Blue #26538D ΔE 0.035
- YInMn Blue #415A77 ΔE 0.037
- Dusk #4E5481 ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.051
- Twilight #4E518B ΔE 0.053
Use #305178 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.