#013358
Closest named color: Marine (#042E60). oklch(31.3% 0.082 247.5), rgb(1, 51, 88).
Aa
White text reads best on this color (12.99:1).
About this color
#013358 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.082 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.023 away. White text reads best on it, at 12.99:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.61:1 |
| White text | 12.99:1 |
Values
| HEX | #013358 |
| RGB | rgb(1, 51, 88) |
| HSL | hsl(206, 98%, 17%) |
| OKLCH | oklch(31.3% 0.082 247.5) |
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 #013358 | 12.99:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #013358 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #013358 text on white | 12.99:1 | AAA | Lc 98.8 | Preferred for body text |
| #013358 text on black | 1.61:1 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFC
oklch(93.6% 0.028 248.1)
-
Step 200
200
#BEDDFC
oklch(88.5% 0.054 248.4)
-
Step 300
300
#8DC7FD
oklch(81% 0.098 247.3)
-
Step 400
400
#40A7FC
oklch(70.8% 0.156 247.4)
-
Step 500
500
#008EE8
oklch(63% 0.168 247.5)
-
Step 600
600
#0077C4
oklch(55.5% 0.148 247.6)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950 (this color)
#013358
oklch(31.3% 0.082 247.5)
#013358 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) | #21355A | 0.029 |
| Deuteranopia (no green cones) | #132E57 | 0.018 |
| Tritanopia (no blue cones) | #003C41 | 0.058 |
| Achromatopsia (no color) | #313131 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #013358
#013358
oklch(31.3% 0.082 247.5)
- #482900
#482900
oklch(31.4% 0.069 67.1)
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 #013358, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.024
- Marine Blue #01386A ΔE 0.034
- Midnight Green #073B4C ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.045
- Gunmetal #293241 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.061
Use #013358 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.