#002F4C
Closest named color: Marine (#042E60). oklch(29.3% 0.071 242.8), rgb(0, 47, 76).
Aa
White text reads best on this color (13.89:1).
About this color
#002F4C is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.071 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.037 away. White text reads best on it, at 13.89:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #002F4C |
| RGB | rgb(0, 47, 76) |
| HSL | hsl(203, 100%, 15%) |
| OKLCH | oklch(29.3% 0.071 242.8) |
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 #002F4C | 13.89:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #002F4C | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #002F4C text on white | 13.89:1 | AAA | Lc 100.1 | Preferred for body text |
| #002F4C text on black | 1.51:1 | 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DDECF9
oklch(93.6% 0.024 244.1)
-
Step 200
200
#C0DEF6
oklch(88.6% 0.046 242.3)
-
Step 300
300
#91C8F3
oklch(81% 0.084 242.5)
-
Step 400
400
#49A9ED
oklch(70.7% 0.134 242.9)
-
Step 500
500
#0091DD
oklch(63.1% 0.152 242.9)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950 (this color)
#002F4C
oklch(29.3% 0.071 242.8)
#002F4C 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) | #21304D | 0.032 |
| Deuteranopia (no green cones) | #16294B | 0.024 |
| Tritanopia (no blue cones) | #00363A | 0.046 |
| Achromatopsia (no color) | #2C2C2C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002F4C
#002F4C
oklch(29.3% 0.071 242.8)
- #432300
#432300
oklch(29.3% 0.067 62.5)
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 #002F4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.041
- Midnight Green #073B4C ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.052
- Dark #1B2431 ΔE 0.056
Use #002F4C 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.