#045784
Closest named color: Deep Sea Blue (#015482). oklch(43.7% 0.101 241.6), rgb(4, 87, 132).
Aa
White text reads best on this color (7.77:1).
About this color
#045784 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.101 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.010 away. White text reads best on it, at 7.77:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #045784 |
| RGB | rgb(4, 87, 132) |
| HSL | hsl(201, 94%, 27%) |
| OKLCH | oklch(43.7% 0.101 241.6) |
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 #045784 | 7.77:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #045784 | 2.70:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #045784 text on white | 7.77:1 | AAA | Lc 86.5 | Fine for body text |
| #045784 text on black | 2.70:1 | Fails | Lc -15.6 | Dividers and decoration only |
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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCED
oklch(88.4% 0.033 242.4)
-
Step 300
300
#9FC6E4
oklch(80.9% 0.06 241.6)
-
Step 400
400
#68A8D6
oklch(70.7% 0.094 241.1)
-
Step 500
500
#3991CC
oklch(63% 0.122 241.9)
-
Step 600
600
#007AB8
oklch(55.5% 0.131 241.7)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800 (this color)
#045784
oklch(43.7% 0.101 241.6)
-
Step 900
900
#104667
oklch(37.7% 0.078 241)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#045784 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) | #415886 | 0.048 |
| Deuteranopia (no green cones) | #304E83 | 0.035 |
| Tritanopia (no blue cones) | #006267 | 0.067 |
| Achromatopsia (no color) | #525252 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045784
#045784
oklch(43.7% 0.101 241.6)
- #784200
#784200
oklch(43.6% 0.101 61.4)
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 #045784, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.010
- Light Navy #155084 ΔE 0.021
- Dusk Blue #26538D ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.049
- Cobalt #1E488F ΔE 0.050
- Peacock Blue #016795 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.052
Use #045784 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.