#004A81
Closest named color: Twilight Blue (#0A437A). oklch(40.2% 0.112 249.3), rgb(0, 74, 129).
Aa
White text reads best on this color (9.14:1).
About this color
#004A81 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.112 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.022 away. White text reads best on it, at 9.14:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #004A81 |
| RGB | rgb(0, 74, 129) |
| HSL | hsl(206, 100%, 25%) |
| OKLCH | oklch(40.2% 0.112 249.3) |
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 #004A81 | 9.14:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #004A81 | 2.29:1 | Fails | Lc 13.5 | Not readable |
| #004A81 text on white | 9.14:1 | AAA | Lc 90.4 | Preferred for body text |
| #004A81 text on black | 2.29:1 | Fails | Lc -11.9 | 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 900.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C2DCF7
oklch(88.4% 0.047 249.4)
-
Step 300
300
#97C5F5
oklch(80.8% 0.084 250)
-
Step 400
400
#58A6F0
oklch(70.7% 0.134 249.1)
-
Step 500
500
#0F8DEB
oklch(63.1% 0.171 249.2)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900 (this color)
#004A81
oklch(40.2% 0.112 249.3)
-
Step 950
950
#032847
oklch(27.1% 0.07 248.8)
#004A81 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) | #2E4E83 | 0.035 |
| Deuteranopia (no green cones) | #184380 | 0.021 |
| Tritanopia (no blue cones) | #00575F | 0.079 |
| Achromatopsia (no color) | #484848 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004A81
#004A81
oklch(40.2% 0.112 249.3)
- #663E00
#663E00
oklch(40.2% 0.088 69.3)
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 #004A81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.022
- Light Navy #155084 ΔE 0.022
- Cobalt #1E488F ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.031
- Dusk Blue #26538D ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.061
- Marine Blue #01386A ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.066
Use #004A81 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.