#052D4B
Closest named color: Oxford Blue (#1B263B). oklch(28.8% 0.069 246.5), rgb(5, 45, 75).
Aa
White text reads best on this color (14.15:1).
About this color
#052D4B is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.069 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.036 away. White text reads best on it, at 14.15:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.48:1 |
| White text | 14.15:1 |
Values
| HEX | #052D4B |
| RGB | rgb(5, 45, 75) |
| HSL | hsl(206, 88%, 16%) |
| OKLCH | oklch(28.8% 0.069 246.5) |
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 #052D4B | 14.15:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #052D4B | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #052D4B text on white | 14.15:1 | AAA | Lc 100.6 | Preferred for body text |
| #052D4B text on black | 1.48:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C2DDF6
oklch(88.6% 0.045 246.3)
-
Step 300
300
#95C6F3
oklch(80.8% 0.082 246.7)
-
Step 400
400
#54A7ED
oklch(70.7% 0.131 246.5)
-
Step 500
500
#008FE6
oklch(63.1% 0.164 246.6)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#004472
oklch(37.6% 0.099 246.8)
-
Step 950
950 (this color)
#052D4B
oklch(28.8% 0.069 246.5)
#052D4B 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) | #1F2E4C | 0.026 |
| Deuteranopia (no green cones) | #14284A | 0.019 |
| Tritanopia (no blue cones) | #003438 | 0.048 |
| Achromatopsia (no color) | #2B2B2B | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #052D4B
#052D4B
oklch(28.8% 0.069 246.5)
- #402300
#402300
oklch(28.8% 0.064 65.6)
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 #052D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.036
- Marine #042E60 ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.046
- Midnight Green #073B4C ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Dark #1B2431 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.056
Use #052D4B 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.