#0D1F39
Closest named color: Rich Black (#0D1B2A). oklch(24% 0.056 257.7), rgb(13, 31, 57).
Aa
White text reads best on this color (16.50:1).
About this color
#0D1F39 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.056 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.030 away. White text reads best on it, at 16.50:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.27:1 |
| White text | 16.50:1 |
Values
| HEX | #0D1F39 |
| RGB | rgb(13, 31, 57) |
| HSL | hsl(215, 63%, 14%) |
| OKLCH | oklch(24% 0.056 257.7) |
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 #0D1F39 | 16.50:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #0D1F39 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #0D1F39 text on white | 16.50:1 | AAA | Lc 103.3 | Preferred for body text |
| #0D1F39 text on black | 1.27:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADAF2
oklch(88.4% 0.037 258.4)
-
Step 300
300
#A6C3EB
oklch(80.9% 0.065 256.5)
-
Step 400
400
#77A2E2
oklch(70.7% 0.105 258.1)
-
Step 500
500
#538ADA
oklch(63.2% 0.135 257.8)
-
Step 600
600
#3672C7
oklch(55.6% 0.146 257.6)
-
Step 700
700
#295FAC
oklch(49.1% 0.136 257.8)
-
Step 800
800
#234E8B
oklch(42.7% 0.112 257.6)
-
Step 900
900
#21416F
oklch(37.6% 0.088 257.6)
-
Step 950
950 (this color)
#0D1F39
oklch(24% 0.056 257.7)
#0D1F39 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) | #13213A | 0.011 |
| Deuteranopia (no green cones) | #0D1D38 | 0.007 |
| Tritanopia (no blue cones) | #002529 | 0.045 |
| Achromatopsia (no color) | #1F1F1F | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1F39
#0D1F39
oklch(24% 0.056 257.7)
- #2C1C00
#2C1C00
oklch(24.1% 0.05 78.9)
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 #0D1F39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.030
- Oxford Blue #1B263B ΔE 0.033
- Dark #1B2431 ΔE 0.033
- Jet #212529 ΔE 0.051
- Navy Blue #001146 ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.070
- Dark Indigo #1F0954 ΔE 0.077
- Rich Navy #001219 ΔE 0.079
Use #0D1F39 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.