#305290
Closest named color: Dusk Blue (#26538D). oklch(44.5% 0.11 261.4), rgb(48, 82, 144).
Aa
White text reads best on this color (7.67:1).
About this color
#305290 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.110 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.011 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #305290 |
| RGB | rgb(48, 82, 144) |
| HSL | hsl(219, 50%, 38%) |
| OKLCH | oklch(44.5% 0.11 261.4) |
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 #305290 | 7.67:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #305290 | 2.73:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #305290 text on white | 7.67:1 | AAA | Lc 86.4 | Fine for body text |
| #305290 text on black | 2.73:1 | Fails | Lc -15.6 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF1
oklch(88.5% 0.035 260.4)
-
Step 300
300
#AAC2EB
oklch(81% 0.064 261.1)
-
Step 400
400
#7DA1E1
oklch(70.8% 0.102 261.5)
-
Step 500
500
#5B88D8
oklch(63.1% 0.131 261.2)
-
Step 600
600
#4270C6
oklch(55.6% 0.143 261.7)
-
Step 700
700
#335EAB
oklch(49.2% 0.132 261)
-
Step 800
800 (this color)
#305290
oklch(44.5% 0.11 261.4)
-
Step 900
900
#27406F
oklch(37.6% 0.087 261.9)
-
Step 950
950
#172641
oklch(27% 0.055 261.4)
#305290 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) | #355892 | 0.019 |
| Deuteranopia (no green cones) | #274F8F | 0.014 |
| Tritanopia (no blue cones) | #00606A | 0.090 |
| Achromatopsia (no color) | #535353 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305290
#305290
oklch(44.5% 0.11 261.4)
- #6E4E00
#6E4E00
oklch(44.7% 0.092 81.3)
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 #305290, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.011
- Light Navy Blue #2E5A88 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.030
- Light Navy #155084 ΔE 0.032
- Cobalt #1E488F ΔE 0.036
- Twilight #4E518B ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.040
- Dusk #4E5481 ΔE 0.046
Use #305290 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.