#002B52
Closest named color: Marine (#042E60). oklch(28.6% 0.084 251.2), rgb(0, 43, 82).
Aa
White text reads best on this color (14.31:1).
About this color
#002B52 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.084 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 14.31:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.46:1 |
| White text | 14.31:1 |
Values
| HEX | #002B52 |
| RGB | rgb(0, 43, 82) |
| HSL | hsl(209, 100%, 16%) |
| OKLCH | oklch(28.6% 0.084 251.2) |
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 #002B52 | 14.31:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #002B52 | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #002B52 text on white | 14.31:1 | AAA | Lc 100.6 | Preferred for body text |
| #002B52 text on black | 1.46:1 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFD
oklch(93.6% 0.029 249.8)
-
Step 200
200
#BFDCFD
oklch(88.4% 0.055 251.8)
-
Step 300
300
#90C5FF
oklch(80.8% 0.1 251.3)
-
Step 400
400
#4BA4FF
oklch(70.6% 0.158 251.5)
-
Step 500
500
#008BF4
oklch(63.1% 0.185 251.3)
-
Step 600
600
#0075CE
oklch(55.7% 0.162 251.1)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#004279
oklch(37.6% 0.11 251.3)
-
Step 950
950 (this color)
#002B52
oklch(28.6% 0.084 251.2)
#002B52 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) | #162E54 | 0.022 |
| Deuteranopia (no green cones) | #052751 | 0.012 |
| Tritanopia (no blue cones) | #00343A | 0.060 |
| Achromatopsia (no color) | #2A2A2A | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002B52
#002B52
oklch(28.6% 0.084 251.2)
- #3D2400
#3D2400
oklch(28.6% 0.062 70.9)
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 #002B52, 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 0.045
- Oxford Blue #1B263B ΔE 0.047
- Marine Blue #01386A ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.057
- Midnight Green #073B4C ΔE 0.058
- Gunmetal #293241 ΔE 0.062
- Dark #1B2431 ΔE 0.063
Use #002B52 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.