#045D7C
Closest named color: Deep Sea Blue (#015482). oklch(44.8% 0.088 230.1), rgb(4, 93, 124).
Aa
White text reads best on this color (7.33:1).
About this color
#045D7C is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.088 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.032 away. White text reads best on it, at 7.33:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #045D7C |
| RGB | rgb(4, 93, 124) |
| HSL | hsl(195, 94%, 25%) |
| OKLCH | oklch(44.8% 0.088 230.1) |
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 #045D7C | 7.33:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #045D7C | 2.86:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #045D7C text on white | 7.33:1 | AAA | Lc 85.0 | Fine for body text |
| #045D7C text on black | 2.86:1 | Fails | Lc -17.0 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#9FC7DC
oklch(80.8% 0.052 231.1)
-
Step 400
400
#68AACA
oklch(70.6% 0.082 230.5)
-
Step 500
500
#3695BD
oklch(63.2% 0.106 229.9)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800 (this color)
#045D7C
oklch(44.8% 0.088 230.1)
-
Step 900
900
#0E485F
oklch(37.8% 0.068 230.1)
-
Step 950
950
#0B2A38
oklch(27% 0.044 231.3)
#045D7C 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) | #4D5C7D | 0.060 |
| Deuteranopia (no green cones) | #3E527C | 0.050 |
| Tritanopia (no blue cones) | #006667 | 0.052 |
| Achromatopsia (no color) | #565656 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045D7C
#045D7C
oklch(44.8% 0.088 230.1)
- #7B4524
#7B4524
oklch(44.9% 0.088 50.3)
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 #045D7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.032
- Petrol #005F6A ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.044
- Light Navy #155084 ΔE 0.045
- Peacock Blue #016795 ΔE 0.046
- Dusk Blue #26538D ΔE 0.048
- Denim #3B638C ΔE 0.051
Use #045D7C 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.