#305989
Closest named color: Light Navy Blue (#2E5A88). oklch(45.8% 0.091 253.6), rgb(48, 89, 137).
Aa
White text reads best on this color (7.20:1).
About this color
#305989 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.091 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.004 away. White text reads best on it, at 7.20:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #305989 |
| RGB | rgb(48, 89, 137) |
| HSL | hsl(212, 48%, 36%) |
| OKLCH | oklch(45.8% 0.091 253.6) |
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 #305989 | 7.20:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #305989 | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #305989 text on white | 7.20:1 | AAA | Lc 84.8 | Fine for body text |
| #305989 text on black | 2.91:1 | Fails | Lc -17.2 | 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
#A9C3E3
oklch(80.8% 0.054 253.8)
-
Step 400
400
#7BA4D5
oklch(70.8% 0.085 253.3)
-
Step 500
500
#588CCA
oklch(63% 0.109 253.7)
-
Step 600
600
#3D75B7
oklch(55.6% 0.119 253.9)
-
Step 700
700
#2E629D
oklch(49% 0.11 253.4)
-
Step 800
800 (this color)
#305989
oklch(45.8% 0.091 253.6)
-
Step 900
900
#254366
oklch(37.7% 0.07 253.4)
-
Step 950
950
#16273C
oklch(26.9% 0.046 254.4)
#305989 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) | #445C8B | 0.026 |
| Deuteranopia (no green cones) | #385388 | 0.018 |
| Tritanopia (no blue cones) | #00646A | 0.075 |
| Achromatopsia (no color) | #575757 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305989
#305989
oklch(45.8% 0.091 253.6)
- #754E0D
#754E0D
oklch(45.6% 0.091 73.7)
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 #305989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.004
- Denim Blue #3B5B92 ΔE 0.020
- Dusk Blue #26538D ΔE 0.023
- Denim #3B638C ΔE 0.033
- YInMn Blue #415A77 ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.038
- Light Navy #155084 ΔE 0.038
Use #305989 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.