#305889
Closest named color: Light Navy Blue (#2E5A88). oklch(45.5% 0.093 254.5), rgb(48, 88, 137).
Aa
White text reads best on this color (7.28:1).
About this color
#305889 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.093 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.007 away. White text reads best on it, at 7.28:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.88:1 |
| White text | 7.28:1 |
Values
| HEX | #305889 |
| RGB | rgb(48, 88, 137) |
| HSL | hsl(213, 48%, 36%) |
| OKLCH | oklch(45.5% 0.093 254.5) |
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 #305889 | 7.28:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #305889 | 2.88:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #305889 text on white | 7.28:1 | AAA | Lc 85.1 | Fine for body text |
| #305889 text on black | 2.88:1 | Fails | Lc -16.9 | 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
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#A9C3E4
oklch(80.9% 0.055 254.5)
-
Step 400
400
#7BA3D6
oklch(70.6% 0.087 254.8)
-
Step 500
500
#598CCB
oklch(63.1% 0.11 254.4)
-
Step 600
600
#3E75B8
oklch(55.7% 0.12 254.6)
-
Step 700
700
#2F629E
oklch(49.1% 0.111 254.1)
-
Step 800
800 (this color)
#305889
oklch(45.5% 0.093 254.5)
-
Step 900
900
#254367
oklch(37.8% 0.072 254)
-
Step 950
950
#16273C
oklch(26.9% 0.046 254.4)
#305889 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) | #435B8B | 0.025 |
| Deuteranopia (no green cones) | #375388 | 0.015 |
| Tritanopia (no blue cones) | #00636A | 0.075 |
| Achromatopsia (no color) | #565656 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305889
#305889
oklch(45.5% 0.093 254.5)
- #754E08
#754E08
oklch(45.6% 0.093 74.5)
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 #305889, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.007
- Dusk Blue #26538D ΔE 0.021
- Denim Blue #3B5B92 ΔE 0.021
- Deep Sea Blue #015482 ΔE 0.035
- Light Navy #155084 ΔE 0.036
- Denim #3B638C ΔE 0.036
- YInMn Blue #415A77 ΔE 0.036
- Dusk #4E5481 ΔE 0.038
Use #305889 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.