#013E6B
Closest named color: Marine Blue (#01386A). oklch(35.6% 0.096 248.3), rgb(1, 62, 107).
Aa
White text reads best on this color (11.03:1).
About this color
#013E6B is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.096 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.019 away. White text reads best on it, at 11.03:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #013E6B |
| RGB | rgb(1, 62, 107) |
| HSL | hsl(205, 98%, 21%) |
| OKLCH | oklch(35.6% 0.096 248.3) |
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 #013E6B | 11.03:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #013E6B | 1.90:1 | Fails | Lc 8.9 | Not readable |
| #013E6B text on white | 11.03:1 | AAA | Lc 95.0 | Preferred for body text |
| #013E6B text on black | 1.90:1 | Fails | Lc -7.6 | 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
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C5DCF3
oklch(88.5% 0.04 248.3)
-
Step 300
300
#9CC5ED
oklch(80.8% 0.072 248.1)
-
Step 400
400
#63A6E5
oklch(70.7% 0.115 248.4)
-
Step 500
500
#308EDD
oklch(63% 0.147 248.3)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900 (this color)
#013E6B
oklch(35.6% 0.096 248.3)
-
Step 950
950
#092842
oklch(26.9% 0.06 247.8)
#013E6B 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) | #27416D | 0.032 |
| Deuteranopia (no green cones) | #16386A | 0.020 |
| Tritanopia (no blue cones) | #00494F | 0.068 |
| Achromatopsia (no color) | #3C3C3C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #013E6B
#013E6B
oklch(35.6% 0.096 248.3)
- #563300
#563300
oklch(35.6% 0.078 68.5)
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 #013E6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.019
- Twilight Blue #0A437A ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.041
- Marine #042E60 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.053
- Midnight Green #073B4C ΔE 0.054
- Charcoal #264653 ΔE 0.061
Use #013E6B 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.