#305478
Closest named color: Light Navy Blue (#2E5A88). oklch(43.6% 0.073 249.8), rgb(48, 84, 120).
Aa
White text reads best on this color (7.87:1).
About this color
#305478 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.073 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.028 away. White text reads best on it, at 7.87:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #305478 |
| RGB | rgb(48, 84, 120) |
| HSL | hsl(210, 43%, 33%) |
| OKLCH | oklch(43.6% 0.073 249.8) |
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 #305478 | 7.87:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #305478 | 2.66:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #305478 text on white | 7.87:1 | AAA | Lc 87.2 | Fine for body text |
| #305478 text on black | 2.66:1 | Fails | Lc -14.9 | 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
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ACC3DC
oklch(80.8% 0.043 250.6)
-
Step 400
400
#80A4CA
oklch(70.6% 0.069 250.2)
-
Step 500
500
#5F8DBC
oklch(62.9% 0.087 249.9)
-
Step 600
600
#4577A9
oklch(55.6% 0.095 249.9)
-
Step 700
700
#366491
oklch(49.1% 0.089 249.6)
-
Step 800
800 (this color)
#305478
oklch(43.6% 0.073 249.8)
-
Step 900
900
#29445F
oklch(37.8% 0.057 249.6)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#305478 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) | #45557A | 0.027 |
| Deuteranopia (no green cones) | #3B4E77 | 0.021 |
| Tritanopia (no blue cones) | #005C61 | 0.060 |
| Achromatopsia (no color) | #515151 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305478
#305478
oklch(43.6% 0.073 249.8)
- #6B4A20
#6B4A20
oklch(43.7% 0.073 70.3)
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 #305478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.028
- YInMn Blue #415A77 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.032
- Light Navy #155084 ΔE 0.034
- Dusk Blue #26538D ΔE 0.037
- Dusk #4E5481 ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.047
- Dusty Grape #545775 ΔE 0.050
Use #305478 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.