#0D1933
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.054 263.8), rgb(13, 25, 51).
Aa
White text reads best on this color (17.44:1).
About this color
#0D1933 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.054 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 17.44:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.44:1 |
Values
| HEX | #0D1933 |
| RGB | rgb(13, 25, 51) |
| HSL | hsl(221, 59%, 13%) |
| OKLCH | oklch(21.9% 0.054 263.8) |
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 #0D1933 | 17.44:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #0D1933 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #0D1933 text on white | 17.44:1 | AAA | Lc 104.2 | Preferred for body text |
| #0D1933 text on black | 1.20:1 | 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
#F2F5FB
oklch(97% 0.009 264.5)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CDDAF1
oklch(88.6% 0.035 262)
-
Step 300
300
#ACC1EB
oklch(80.9% 0.064 264.1)
-
Step 400
400
#80A0E1
oklch(70.8% 0.102 263.9)
-
Step 500
500
#6087D8
oklch(63.1% 0.13 263.6)
-
Step 600
600
#476FC6
oklch(55.6% 0.142 263.8)
-
Step 700
700
#395CAB
oklch(49% 0.133 264.1)
-
Step 800
800
#2F4C8A
oklch(42.7% 0.109 263.6)
-
Step 900
900
#2A406F
oklch(37.8% 0.085 263.9)
-
Step 950
950 (this color)
#0D1933
oklch(21.9% 0.054 263.8)
#0D1933 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) | #0D1C34 | 0.010 |
| Deuteranopia (no green cones) | #081832 | 0.008 |
| Tritanopia (no blue cones) | #001F23 | 0.046 |
| Achromatopsia (no color) | #1A1A1A | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1933
#0D1933
oklch(21.9% 0.054 263.8)
- #241800
#241800
oklch(21.8% 0.045 83.8)
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 #0D1933, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.047
- Navy Blue #001146 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.052
- Rich Navy #001219 ΔE 0.062
- Jet #212529 ΔE 0.062
- Night Blue #040348 ΔE 0.072
- Dark Navy #000435 ΔE 0.072
Use #0D1933 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.