#04508D
Closest named color: Light Navy (#155084). oklch(42.6% 0.12 250.6), rgb(4, 80, 141).
Aa
White text reads best on this color (8.27:1).
About this color
#04508D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.120 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.016 away. White text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #04508D |
| RGB | rgb(4, 80, 141) |
| HSL | hsl(207, 94%, 28%) |
| OKLCH | oklch(42.6% 0.12 250.6) |
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 #04508D | 8.27:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #04508D | 2.53:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #04508D text on white | 8.27:1 | AAA | Lc 88.0 | Fine for body text |
| #04508D text on black | 2.53:1 | Fails | Lc -14.2 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF3
oklch(88.6% 0.039 250.7)
-
Step 300
300
#9FC5ED
oklch(81% 0.07 250)
-
Step 400
400
#69A5E4
oklch(70.7% 0.112 250.8)
-
Step 500
500
#3B8DDC
oklch(63.1% 0.143 250.5)
-
Step 600
600
#0B75CA
oklch(55.5% 0.156 250.7)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800 (this color)
#04508D
oklch(42.6% 0.12 250.6)
-
Step 900
900
#124371
oklch(37.6% 0.094 250.8)
-
Step 950
950
#0D2842
oklch(27.1% 0.059 250.2)
#04508D 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) | #30548F | 0.033 |
| Deuteranopia (no green cones) | #17498C | 0.020 |
| Tritanopia (no blue cones) | #005F67 | 0.088 |
| Achromatopsia (no color) | #4E4E4E | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04508D
#04508D
oklch(42.6% 0.12 250.6)
- #6E4400
#6E4400
oklch(42.6% 0.092 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 #04508D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.016
- Dusk Blue #26538D ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.024
- Cobalt #1E488F ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.045
- Twilight Blue #0A437A ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.056
- Peacock Blue #016795 ΔE 0.068
Use #04508D 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.