#00386E
Closest named color: Marine Blue (#01386A). oklch(34.2% 0.107 253.6), rgb(0, 56, 110).
Aa
White text reads best on this color (11.72:1).
About this color
#00386E is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.107 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.007 away. White text reads best on it, at 11.72:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.79:1 |
| White text | 11.72:1 |
Values
| HEX | #00386E |
| RGB | rgb(0, 56, 110) |
| HSL | hsl(209, 100%, 22%) |
| OKLCH | oklch(34.2% 0.107 253.6) |
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 #00386E | 11.72:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #00386E | 1.79:1 | Fails | Lc 7.6 | Not readable |
| #00386E text on white | 11.72:1 | AAA | Lc 96.3 | Preferred for body text |
| #00386E text on black | 1.79:1 | 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 900.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF7
oklch(88.4% 0.045 254.5)
-
Step 300
300
#9CC4F4
oklch(80.9% 0.081 253.3)
-
Step 400
400
#64A4EF
oklch(70.8% 0.129 253.4)
-
Step 500
500
#338BEA
oklch(63.2% 0.165 253.4)
-
Step 600
600
#0072D5
oklch(55.5% 0.175 253.6)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900 (this color)
#00386E
oklch(34.2% 0.107 253.6)
-
Step 950
950
#0A2747
oklch(27.1% 0.069 253.6)
#00386E 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) | #193D70 | 0.024 |
| Deuteranopia (no green cones) | #00346D | 0.012 |
| Tritanopia (no blue cones) | #00454D | 0.080 |
| Achromatopsia (no color) | #383838 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00386E
#00386E
oklch(34.2% 0.107 253.6)
- #4F3200
#4F3200
oklch(34.4% 0.073 73.9)
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 #00386E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.007
- Marine #042E60 ΔE 0.037
- Twilight Blue #0A437A ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.071
- Cobalt #1E488F ΔE 0.075
Use #00386E 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.