#072D51
Closest named color: Marine (#042E60). oklch(29.3% 0.077 251.5), rgb(7, 45, 81).
Aa
White text reads best on this color (13.97:1).
About this color
#072D51 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.077 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.027 away. White text reads best on it, at 13.97:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.50:1 |
| White text | 13.97:1 |
Values
| HEX | #072D51 |
| RGB | rgb(7, 45, 81) |
| HSL | hsl(209, 84%, 17%) |
| OKLCH | oklch(29.3% 0.077 251.5) |
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 #072D51 | 13.97:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #072D51 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #072D51 text on white | 13.97:1 | AAA | Lc 100.3 | Preferred for body text |
| #072D51 text on black | 1.50:1 | 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 950.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDECFC
oklch(93.7% 0.027 249.9)
-
Step 200
200
#C1DCFA
oklch(88.4% 0.051 251.1)
-
Step 300
300
#95C5FA
oklch(80.9% 0.091 251.4)
-
Step 400
400
#54A5F8
oklch(70.8% 0.146 251.1)
-
Step 500
500
#008BF4
oklch(63.1% 0.185 251.3)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950 (this color)
#072D51
oklch(29.3% 0.077 251.5)
#072D51 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) | #1B3052 | 0.022 |
| Deuteranopia (no green cones) | #0F2950 | 0.013 |
| Tritanopia (no blue cones) | #00363B | 0.057 |
| Achromatopsia (no color) | #2C2C2C | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #072D51
#072D51
oklch(29.3% 0.077 251.5)
- #3F2600
#3F2600
oklch(29.3% 0.063 72.1)
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 #072D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.049
- Midnight Green #073B4C ΔE 0.050
- Marine Blue #01386A ΔE 0.052
- Gunmetal #293241 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #072D51 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.