#0D3E6E
Closest named color: Marine Blue (#01386A). oklch(36% 0.097 252.3), rgb(13, 62, 110).
Aa
White text reads best on this color (10.87:1).
About this color
#0D3E6E is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.097 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.021 away. White text reads best on it, at 10.87:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.93:1 |
| White text | 10.87:1 |
Values
| HEX | #0D3E6E |
| RGB | rgb(13, 62, 110) |
| HSL | hsl(210, 79%, 24%) |
| OKLCH | oklch(36% 0.097 252.3) |
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 #0D3E6E | 10.87:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #0D3E6E | 1.93:1 | Fails | Lc 9.1 | Not readable |
| #0D3E6E text on white | 10.87:1 | AAA | Lc 94.8 | Preferred for body text |
| #0D3E6E text on black | 1.93:1 | Fails | Lc -7.8 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#9FC4EF
oklch(80.9% 0.073 252.5)
-
Step 400
400
#69A4E7
oklch(70.6% 0.117 252.6)
-
Step 500
500
#3C8CE0
oklch(63.1% 0.149 252.3)
-
Step 600
600
#0F74CE
oklch(55.6% 0.162 252.3)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800
#074F90
oklch(42.6% 0.125 252.5)
-
Step 900
900 (this color)
#0D3E6E
oklch(36% 0.097 252.3)
-
Step 950
950
#0D2743
oklch(26.9% 0.061 252.5)
#0D3E6E 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) | #264270 | 0.027 |
| Deuteranopia (no green cones) | #15396D | 0.015 |
| Tritanopia (no blue cones) | #004950 | 0.071 |
| Achromatopsia (no color) | #3D3D3D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D3E6E
#0D3E6E
oklch(36% 0.097 252.3)
- #563500
#563500
oklch(36% 0.077 71.3)
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 #0D3E6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.021
- Twilight Blue #0A437A ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.053
- Marine #042E60 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.057
- Midnight Green #073B4C ΔE 0.060
- Charcoal #264653 ΔE 0.063
Use #0D3E6E 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.