#305688
Closest named color: Light Navy Blue (#2E5A88). oklch(45% 0.093 255.9), rgb(48, 86, 136).
Aa
White text reads best on this color (7.46:1).
About this color
#305688 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.012 away. White text reads best on it, at 7.46:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #305688 |
| RGB | rgb(48, 86, 136) |
| HSL | hsl(214, 48%, 36%) |
| OKLCH | oklch(45% 0.093 255.9) |
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 #305688 | 7.46:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #305688 | 2.81:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #305688 text on white | 7.46:1 | AAA | Lc 85.8 | Fine for body text |
| #305688 text on black | 2.81:1 | Fails | Lc -16.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDAED
oklch(88.4% 0.03 256)
-
Step 300
300
#AAC3E4
oklch(81% 0.054 255.4)
-
Step 400
400
#7CA3D7
oklch(70.7% 0.088 255.8)
-
Step 500
500
#5B8BCC
oklch(63.1% 0.112 256.3)
-
Step 600
600
#4074B9
oklch(55.6% 0.122 256.2)
-
Step 700
700
#32619F
oklch(49.1% 0.112 256.1)
-
Step 800
800 (this color)
#305688
oklch(45% 0.093 255.9)
-
Step 900
900
#264268
oklch(37.6% 0.074 256.4)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#305688 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) | #40598A | 0.022 |
| Deuteranopia (no green cones) | #345187 | 0.014 |
| Tritanopia (no blue cones) | #006168 | 0.077 |
| Achromatopsia (no color) | #555555 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305688
#305688
oklch(45% 0.093 255.9)
- #724D03
#724D03
oklch(45% 0.093 76.6)
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 #305688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.012
- Dusk Blue #26538D ΔE 0.017
- Denim Blue #3B5B92 ΔE 0.025
- Light Navy #155084 ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.033
- Dusk #4E5481 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.038
- Twilight #4E518B ΔE 0.040
Use #305688 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.