#0D1337
Closest named color: Navy Blue (#001146). oklch(20.7% 0.07 271.7), rgb(13, 19, 55).
Aa
White text reads best on this color (18.01:1).
About this color
#0D1337 is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.070 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.035 away. White text reads best on it, at 18.01:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 18.01:1 |
Values
| HEX | #0D1337 |
| RGB | rgb(13, 19, 55) |
| HSL | hsl(231, 62%, 13%) |
| OKLCH | oklch(20.7% 0.07 271.7) |
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 #0D1337 | 18.01:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0D1337 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #0D1337 text on white | 18.01:1 | AAA | Lc 104.6 | Preferred for body text |
| #0D1337 text on black | 1.16:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#ADBEF7
oklch(80.9% 0.083 271.6)
-
Step 400
400
#839AF3
oklch(70.6% 0.133 271.7)
-
Step 500
500
#667EEF
oklch(63% 0.171 271.7)
-
Step 600
600
#5064DD
oklch(55.5% 0.185 271.9)
-
Step 700
700
#4152C0
oklch(49% 0.172 271.8)
-
Step 800
800
#35449B
oklch(42.6% 0.142 271.6)
-
Step 900
900
#2E3B7C
oklch(37.9% 0.111 271.6)
-
Step 950
950 (this color)
#0D1337
oklch(20.7% 0.07 271.7)
#0D1337 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) | #001838 | 0.021 |
| Deuteranopia (no green cones) | #001536 | 0.019 |
| Tritanopia (no blue cones) | #001C22 | 0.060 |
| Achromatopsia (no color) | #161616 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1337
#0D1337
oklch(20.7% 0.07 271.7)
- #1F1700
#1F1700
oklch(20.9% 0.043 91.9)
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 #0D1337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.040
- Night Blue #040348 ΔE 0.052
- Dark Navy #000435 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.065
- Very Dark Blue #000133 ΔE 0.066
- Rich Navy #001219 ΔE 0.067
- Midnight #03012D ΔE 0.067
Use #0D1337 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.