#045A7A
Closest named color: Deep Sea Blue (#015482). oklch(43.9% 0.088 231.7), rgb(4, 90, 122).
Aa
White text reads best on this color (7.64:1).
About this color
#045A7A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.088 and its hue 232°. 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 7.64:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #045A7A |
| RGB | rgb(4, 90, 122) |
| HSL | hsl(196, 94%, 25%) |
| OKLCH | oklch(43.9% 0.088 231.7) |
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 #045A7A | 7.64:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #045A7A | 2.74:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #045A7A text on white | 7.64:1 | AAA | Lc 86.0 | Fine for body text |
| #045A7A text on black | 2.74:1 | Fails | Lc -16.0 | 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
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#A0C7DC
oklch(80.8% 0.051 231.7)
-
Step 400
400
#69AACB
oklch(70.7% 0.082 231.7)
-
Step 500
500
#3994BE
oklch(63.1% 0.105 232)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800 (this color)
#045A7A
oklch(43.9% 0.088 231.7)
-
Step 900
900
#10485F
oklch(37.8% 0.068 230.5)
-
Step 950
950
#0C2A38
oklch(27% 0.044 231.9)
#045A7A 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) | #4A597C | 0.058 |
| Deuteranopia (no green cones) | #3B4F7A | 0.048 |
| Tritanopia (no blue cones) | #006365 | 0.052 |
| Achromatopsia (no color) | #535353 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045A7A
#045A7A
oklch(43.9% 0.088 231.7)
- #784320
#784320
oklch(44% 0.088 51.8)
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 #045A7A, 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
- Petrol #005F6A ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.036
- Light Navy #155084 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Peacock Blue #016795 ΔE 0.053
- Deep Teal #00555A ΔE 0.054
Use #045A7A 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.