#073170
Closest named color: Marine Blue (#01386A). oklch(32.9% 0.118 259.4), rgb(7, 49, 112).
Aa
White text reads best on this color (12.48:1).
About this color
#073170 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.118 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.024 away. White text reads best on it, at 12.48:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #073170 |
| RGB | rgb(7, 49, 112) |
| HSL | hsl(216, 88%, 23%) |
| OKLCH | oklch(32.9% 0.118 259.4) |
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 #073170 | 12.48:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #073170 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #073170 text on white | 12.48:1 | AAA | Lc 97.8 | Preferred for body text |
| #073170 text on black | 1.68:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#69A0F8
oklch(70.6% 0.142 259.4)
-
Step 500
500
#3F86F5
oklch(63.2% 0.181 259.2)
-
Step 600
600
#1C6CE3
oklch(55.6% 0.196 259.3)
-
Step 700
700
#0E59C6
oklch(49.1% 0.184 259.5)
-
Step 800
800
#104AA0
oklch(42.8% 0.151 259.2)
-
Step 900
900 (this color)
#073170
oklch(32.9% 0.118 259.4)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#073170 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) | #003972 | 0.023 |
| Deuteranopia (no green cones) | #002F6F | 0.008 |
| Tritanopia (no blue cones) | #00414B | 0.091 |
| Achromatopsia (no color) | #343434 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #073170
#073170
oklch(32.9% 0.118 259.4)
- #473000
#473000
oklch(32.8% 0.068 79.6)
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 #073170, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.024
- Marine #042E60 ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.055
- Midnight Blue #191970 ΔE 0.057
- Midnight Green #073B4C ΔE 0.076
- Royal #0C1793 ΔE 0.077
- Dark Blue Grey #1F3B4D ΔE 0.077
Use #073170 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.