#305B80
Closest named color: Light Navy Blue (#2E5A88). oklch(45.7% 0.077 246.5), rgb(48, 91, 128).
Aa
White text reads best on this color (7.15:1).
About this color
#305B80 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.077 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.014 away. White text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #305B80 |
| RGB | rgb(48, 91, 128) |
| HSL | hsl(208, 45%, 35%) |
| OKLCH | oklch(45.7% 0.077 246.5) |
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 #305B80 | 7.15:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #305B80 | 2.93:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #305B80 text on white | 7.15:1 | AAA | Lc 84.7 | Fine for body text |
| #305B80 text on black | 2.93:1 | Fails | Lc -17.3 | Dividers and decoration only |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#AAC4DD
oklch(80.9% 0.045 247.3)
-
Step 400
400
#7BA5CC
oklch(70.6% 0.073 247)
-
Step 500
500
#588FBE
oklch(63.1% 0.092 245.7)
-
Step 600
600
#3C78AB
oklch(55.6% 0.101 246.6)
-
Step 700
700
#2E6593
oklch(49.1% 0.094 246.5)
-
Step 800
800 (this color)
#305B80
oklch(45.7% 0.077 246.5)
-
Step 900
900
#254460
oklch(37.6% 0.061 247.4)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#305B80 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) | #4B5C82 | 0.033 |
| Deuteranopia (no green cones) | #40547F | 0.025 |
| Tritanopia (no blue cones) | #006468 | 0.062 |
| Achromatopsia (no color) | #585858 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305B80
#305B80
oklch(45.7% 0.077 246.5)
- #744E23
#744E23
oklch(45.7% 0.078 66.9)
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 #305B80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.014
- YInMn Blue #415A77 ΔE 0.022
- Denim #3B638C ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.033
- Dusk Blue #26538D ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.039
- Dusk #4E5481 ΔE 0.040
- Light Navy #155084 ΔE 0.044
Use #305B80 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.