#304871
Closest named color: Light Navy (#155084). oklch(40.2% 0.076 260.6), rgb(48, 72, 113).
Aa
White text reads best on this color (9.16:1).
About this color
#304871 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.076 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.039 away. White text reads best on it, at 9.16:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #304871 |
| RGB | rgb(48, 72, 113) |
| HSL | hsl(218, 40%, 32%) |
| OKLCH | oklch(40.2% 0.076 260.6) |
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 #304871 | 9.16:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #304871 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #304871 text on white | 9.16:1 | AAA | Lc 91.0 | Preferred for body text |
| #304871 text on black | 2.29:1 | Fails | Lc -11.3 | Not readable |
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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C2DE
oklch(81% 0.044 260.4)
-
Step 400
400
#87A2CD
oklch(70.8% 0.07 259.6)
-
Step 500
500
#6A8AC0
oklch(63.1% 0.09 260.6)
-
Step 600
600
#5173AD
oklch(55.6% 0.099 260.6)
-
Step 700
700
#426094
oklch(49% 0.091 260.9)
-
Step 800
800 (this color)
#304871
oklch(40.2% 0.076 260.6)
-
Step 900
900
#2F4261
oklch(37.8% 0.059 259.9)
-
Step 950
950
#1C2739
oklch(27.1% 0.037 260)
#304871 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) | #384B73 | 0.015 |
| Deuteranopia (no green cones) | #2F4570 | 0.009 |
| Tritanopia (no blue cones) | #095157 | 0.067 |
| Achromatopsia (no color) | #484848 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304871
#304871
oklch(40.2% 0.076 260.6)
- #5D430E
#5D430E
oklch(40.2% 0.075 80.5)
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 #304871, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.039
- Twilight Blue #0A437A ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.046
- Dusk Blue #26538D ΔE 0.051
- Cobalt #1E488F ΔE 0.052
- Charcoal #264653 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.059
Use #304871 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.