#305C8D
Closest named color: Light Navy Blue (#2E5A88). oklch(46.7% 0.094 252.7), rgb(48, 92, 141).
Aa
White text reads best on this color (6.90:1).
About this color
#305C8D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.094 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.010 away. White text reads best on it, at 6.90:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #305C8D |
| RGB | rgb(48, 92, 141) |
| HSL | hsl(212, 49%, 37%) |
| OKLCH | oklch(46.7% 0.094 252.7) |
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 #305C8D | 6.90:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #305C8D | 3.04:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #305C8D text on white | 6.90:1 | AA | Lc 83.7 | Fine for body text |
| #305C8D text on black | 3.04:1 | AA large text | Lc -18.3 | 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 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ACC3DE
oklch(80.9% 0.046 252.5)
-
Step 400
400
#80A4CD
oklch(70.7% 0.072 252.1)
-
Step 500
500
#608DC0
oklch(63.2% 0.092 252.3)
-
Step 600
600
#4576AD
oklch(55.6% 0.101 252.5)
-
Step 700
700 (this color)
#305C8D
oklch(46.7% 0.094 252.7)
-
Step 800
800
#2E5178
oklch(42.7% 0.077 252.4)
-
Step 900
900
#294361
oklch(37.6% 0.061 252.9)
-
Step 950
950
#182739
oklch(26.8% 0.04 253.6)
#305C8D 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) | #475F8F | 0.029 |
| Deuteranopia (no green cones) | #3A568C | 0.019 |
| Tritanopia (no blue cones) | #00676E | 0.074 |
| Achromatopsia (no color) | #5A5A5A | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305C8D
#305C8D
oklch(46.7% 0.094 252.7)
- #7A500E
#7A500E
oklch(46.7% 0.094 72)
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 #305C8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.010
- Denim Blue #3B5B92 ΔE 0.015
- Denim #3B638C ΔE 0.026
- Dusk Blue #26538D ΔE 0.030
- Dusky Blue #475F94 ΔE 0.031
- Peacock Blue #016795 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.038
- Dusk #4E5481 ΔE 0.041
Use #305C8D 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.