#0A4E81
Closest named color: Light Navy (#155084). oklch(41.3% 0.105 247.9), rgb(10, 78, 129).
Aa
White text reads best on this color (8.67:1).
About this color
#0A4E81 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.105 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.010 away. White text reads best on it, at 8.67:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.41:1 |
| White text | 8.67:1 |
Values
| HEX | #0A4E81 |
| RGB | rgb(10, 78, 129) |
| HSL | hsl(206, 86%, 27%) |
| OKLCH | oklch(41.3% 0.105 247.9) |
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 #0A4E81 | 8.67:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #0A4E81 | 2.41:1 | Fails | Lc 14.7 | Not readable |
| #0A4E81 text on white | 8.67:1 | AAA | Lc 89.3 | Fine for body text |
| #0A4E81 text on black | 2.41:1 | Fails | Lc -12.9 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400
#6DA6DB
oklch(70.7% 0.098 247.6)
-
Step 500
500
#438FD1
oklch(63.2% 0.125 247.5)
-
Step 600
600
#1D77BF
oklch(55.5% 0.138 248.3)
-
Step 700
700
#0C64A4
oklch(49.1% 0.127 247.9)
-
Step 800
800 (this color)
#0A4E81
oklch(41.3% 0.105 247.9)
-
Step 900
900
#17446B
oklch(37.7% 0.083 248.3)
-
Step 950
950
#0F283E
oklch(26.9% 0.052 247.6)
#0A4E81 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) | #355183 | 0.037 |
| Deuteranopia (no green cones) | #234780 | 0.023 |
| Tritanopia (no blue cones) | #005A61 | 0.074 |
| Achromatopsia (no color) | #4B4B4B | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4E81
#0A4E81
oklch(41.3% 0.105 247.9)
- #6B4000
#6B4000
oklch(41.3% 0.091 67.8)
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 #0A4E81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.010
- Deep Sea Blue #015482 ΔE 0.018
- Dusk Blue #26538D ΔE 0.032
- Cobalt #1E488F ΔE 0.033
- Twilight Blue #0A437A ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.065
Use #0A4E81 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.