#045C80
Closest named color: Deep Sea Blue (#015482). oklch(44.8% 0.093 234.3), rgb(4, 92, 128).
Aa
White text reads best on this color (7.37:1).
About this color
#045C80 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.026 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #045C80 |
| RGB | rgb(4, 92, 128) |
| HSL | hsl(197, 94%, 26%) |
| OKLCH | oklch(44.8% 0.093 234.3) |
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 #045C80 | 7.37:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #045C80 | 2.84:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #045C80 text on white | 7.37:1 | AAA | Lc 85.1 | Fine for body text |
| #045C80 text on black | 2.84:1 | Fails | Lc -16.9 | 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
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#9FC7DF
oklch(80.9% 0.054 234.7)
-
Step 400
400
#67AACF
oklch(70.8% 0.087 234)
-
Step 500
500
#3694C2
oklch(63.2% 0.111 233.9)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800 (this color)
#045C80
oklch(44.8% 0.093 234.3)
-
Step 900
900
#0E4762
oklch(37.7% 0.072 234.7)
-
Step 950
950
#0B2A39
oklch(27% 0.045 233.1)
#045C80 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) | #4A5B82 | 0.056 |
| Deuteranopia (no green cones) | #3B517F | 0.047 |
| Tritanopia (no blue cones) | #006568 | 0.056 |
| Achromatopsia (no color) | #565656 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045C80
#045C80
oklch(44.8% 0.093 234.3)
- #7B451C
#7B451C
oklch(44.8% 0.092 54.6)
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 #045C80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.029
- Light Navy #155084 ΔE 0.038
- Dusk Blue #26538D ΔE 0.041
- Petrol #005F6A ΔE 0.041
- Peacock Blue #016795 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.045
- Denim #3B638C ΔE 0.049
Use #045C80 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.