#045C85
Closest named color: Deep Sea Blue (#015482). oklch(45.1% 0.098 237.8), rgb(4, 92, 133).
Aa
White text reads best on this color (7.30:1).
About this color
#045C85 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.098 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.025 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #045C85 |
| RGB | rgb(4, 92, 133) |
| HSL | hsl(199, 94%, 27%) |
| OKLCH | oklch(45.1% 0.098 237.8) |
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 #045C85 | 7.30:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #045C85 | 2.87:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #045C85 text on white | 7.30:1 | AAA | Lc 84.9 | Fine for body text |
| #045C85 text on black | 2.87:1 | Fails | Lc -17.2 | 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
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDEC
oklch(88.5% 0.032 236.4)
-
Step 300
300
#9FC7E2
oklch(81% 0.057 237.9)
-
Step 400
400
#67A9D3
oklch(70.7% 0.091 237.9)
-
Step 500
500
#3593C8
oklch(63.2% 0.117 237.8)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800 (this color)
#045C85
oklch(45.1% 0.098 237.8)
-
Step 900
900
#0D4765
oklch(37.8% 0.076 237.3)
-
Step 950
950
#0B2A3B
oklch(27.1% 0.048 236.5)
#045C85 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) | #485C87 | 0.053 |
| Deuteranopia (no green cones) | #385284 | 0.042 |
| Tritanopia (no blue cones) | #00666A | 0.062 |
| Achromatopsia (no color) | #565656 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045C85
#045C85
oklch(45.1% 0.098 237.8)
- #7D4512
#7D4512
oklch(45% 0.098 57.4)
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 #045C85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.025
- Dusk Blue #26538D ΔE 0.035
- Light Navy #155084 ΔE 0.036
- Peacock Blue #016795 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.045
- Denim #3B638C ΔE 0.046
- YInMn Blue #415A77 ΔE 0.047
Use #045C85 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.