#305890
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.102 257.1), rgb(48, 88, 144).
Aa
White text reads best on this color (7.18:1).
About this color
#305890 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.102 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.016 away. White text reads best on it, at 7.18:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #305890 |
| RGB | rgb(48, 88, 144) |
| HSL | hsl(215, 50%, 38%) |
| OKLCH | oklch(45.9% 0.102 257.1) |
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 #305890 | 7.18:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #305890 | 2.92:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #305890 text on white | 7.18:1 | AAA | Lc 84.7 | Fine for body text |
| #305890 text on black | 2.92:1 | 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 700.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E1
oklch(80.8% 0.05 258)
-
Step 400
400
#81A3D2
oklch(70.8% 0.079 256.6)
-
Step 500
500
#618BC6
oklch(63.1% 0.101 257)
-
Step 600
600
#4774B3
oklch(55.6% 0.111 257)
-
Step 700
700 (this color)
#305890
oklch(45.9% 0.102 257.1)
-
Step 800
800
#2F4F7D
oklch(42.6% 0.086 257.5)
-
Step 900
900
#2A4264
oklch(37.6% 0.066 257.2)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#305890 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) | #3F5C92 | 0.022 |
| Deuteranopia (no green cones) | #31538F | 0.014 |
| Tritanopia (no blue cones) | #00656D | 0.083 |
| Achromatopsia (no color) | #575757 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305890
#305890
oklch(45.9% 0.102 257.1)
- #754F00
#754F00
oklch(45.8% 0.096 76.9)
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 #305890, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.016
- Denim Blue #3B5B92 ΔE 0.016
- Dusk Blue #26538D ΔE 0.019
- Dusky Blue #475F94 ΔE 0.036
- Denim #3B638C ΔE 0.038
- Light Navy #155084 ΔE 0.039
- Twilight #4E518B ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.041
Use #305890 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.