#0A4C81
Closest named color: Light Navy (#155084). oklch(40.8% 0.108 249.4), rgb(10, 76, 129).
Aa
White text reads best on this color (8.88:1).
About this color
#0A4C81 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.108 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.015 away. White text reads best on it, at 8.88:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.36:1 |
| White text | 8.88:1 |
Values
| HEX | #0A4C81 |
| RGB | rgb(10, 76, 129) |
| HSL | hsl(207, 86%, 27%) |
| OKLCH | oklch(40.8% 0.108 249.4) |
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 #0A4C81 | 8.88:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #0A4C81 | 2.36:1 | Fails | Lc 14.1 | Not readable |
| #0A4C81 text on white | 8.88:1 | AAA | Lc 89.9 | Fine for body text |
| #0A4C81 text on black | 2.36:1 | Fails | Lc -12.4 | 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
#C8DCF0
oklch(88.6% 0.035 248.2)
-
Step 300
300
#A2C5E8
oklch(81% 0.062 248.6)
-
Step 400
400
#6EA5DD
oklch(70.6% 0.101 249.9)
-
Step 500
500
#448ED3
oklch(63.1% 0.128 249.1)
-
Step 600
600
#1F77C1
oklch(55.7% 0.14 249.2)
-
Step 700
700
#0F63A6
oklch(49% 0.13 249.4)
-
Step 800
800 (this color)
#0A4C81
oklch(40.8% 0.108 249.4)
-
Step 900
900
#18446C
oklch(37.8% 0.084 249.3)
-
Step 950
950
#10283F
oklch(27% 0.053 249.5)
#0A4C81 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) | #324F83 | 0.034 |
| Deuteranopia (no green cones) | #1E4580 | 0.021 |
| Tritanopia (no blue cones) | #005960 | 0.078 |
| Achromatopsia (no color) | #4A4A4A | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4C81
#0A4C81
oklch(40.8% 0.108 249.4)
- #684000
#684000
oklch(40.9% 0.089 70.1)
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 #0A4C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.015
- Deep Sea Blue #015482 ΔE 0.024
- Twilight Blue #0A437A ΔE 0.028
- Cobalt #1E488F ΔE 0.030
- Dusk Blue #26538D ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.069
Use #0A4C81 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.