#045288
Closest named color: Light Navy (#155084). oklch(42.7% 0.111 247.4), rgb(4, 82, 136).
Aa
White text reads best on this color (8.17:1).
About this color
#045288 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.111 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.009 away. White text reads best on it, at 8.17:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #045288 |
| RGB | rgb(4, 82, 136) |
| HSL | hsl(205, 94%, 27%) |
| OKLCH | oklch(42.7% 0.111 247.4) |
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 #045288 | 8.17:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #045288 | 2.56:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #045288 text on white | 8.17:1 | AAA | Lc 87.7 | Fine for body text |
| #045288 text on black | 2.56:1 | Fails | Lc -14.4 | 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
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#A0C5E9
oklch(80.9% 0.065 247.9)
-
Step 400
400
#69A6DE
oklch(70.6% 0.104 247.5)
-
Step 500
500
#3B8FD5
oklch(63.1% 0.133 247.2)
-
Step 600
600
#0A78C2
oklch(55.7% 0.143 247)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800 (this color)
#045288
oklch(42.7% 0.111 247.4)
-
Step 900
900
#12446D
oklch(37.6% 0.087 247.8)
-
Step 950
950
#0D2840
oklch(27% 0.056 248.3)
#045288 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) | #37558A | 0.039 |
| Deuteranopia (no green cones) | #234A87 | 0.026 |
| Tritanopia (no blue cones) | #005F66 | 0.079 |
| Achromatopsia (no color) | #4F4F4F | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045288
#045288
oklch(42.7% 0.111 247.4)
- #704300
#704300
oklch(42.6% 0.094 67.6)
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 #045288, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.009
- Deep Sea Blue #015482 ΔE 0.013
- Dusk Blue #26538D ΔE 0.022
- Cobalt #1E488F ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Twilight Blue #0A437A ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.054
- Peacock Blue #016795 ΔE 0.063
Use #045288 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.