#053166
Closest named color: Marine (#042E60). oklch(32% 0.104 256.4), rgb(5, 49, 102).
Aa
White text reads best on this color (12.82:1).
About this color
#053166 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.104 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.014 away. White text reads best on it, at 12.82:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.63:1 |
| White text | 12.82:1 |
Values
| HEX | #053166 |
| RGB | rgb(5, 49, 102) |
| HSL | hsl(213, 91%, 21%) |
| OKLCH | oklch(32% 0.104 256.4) |
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 #053166 | 12.82:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #053166 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #053166 text on white | 12.82:1 | AAA | Lc 98.5 | Preferred for body text |
| #053166 text on black | 1.63:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DDEBFF
oklch(93.6% 0.031 257.2)
-
Step 200
200
#C1DBFF
oklch(88.4% 0.057 256.6)
-
Step 300
300
#98C3FF
oklch(80.9% 0.097 256.8)
-
Step 400
400
#5CA1FF
oklch(70.6% 0.155 256.6)
-
Step 500
500
#2186FF
oklch(63.1% 0.201 256.4)
-
Step 600
600
#006FE1
oklch(55.7% 0.193 256.4)
-
Step 700
700
#005DBE
oklch(49.2% 0.17 256.3)
-
Step 800
800
#004C9E
oklch(42.8% 0.148 256.4)
-
Step 900
900
#003F85
oklch(37.8% 0.131 256.3)
-
Step 950
950 (this color)
#053166
oklch(32% 0.104 256.4)
#053166 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) | #103668 | 0.018 |
| Deuteranopia (no green cones) | #002E65 | 0.010 |
| Tritanopia (no blue cones) | #003E46 | 0.079 |
| Achromatopsia (no color) | #323232 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #053166
#053166
oklch(32% 0.104 256.4)
- #462D00
#462D00
oklch(31.9% 0.067 75.8)
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 #053166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.014
- Marine Blue #01386A ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.037
- Midnight Blue #191970 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.062
- Midnight Green #073B4C ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.072
Use #053166 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.