#0D1530
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.055 268.8), rgb(13, 21, 48).
Aa
White text reads best on this color (17.99:1).
About this color
#0D1530 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.055 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 17.99:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 17.99:1 |
Values
| HEX | #0D1530 |
| RGB | rgb(13, 21, 48) |
| HSL | hsl(226, 57%, 12%) |
| OKLCH | oklch(20.5% 0.055 268.8) |
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 #0D1530 | 17.99:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #0D1530 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #0D1530 text on white | 17.99:1 | AAA | Lc 104.6 | Preferred for body text |
| #0D1530 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFC0EC
oklch(81% 0.065 268.4)
-
Step 400
400
#869EE2
oklch(70.8% 0.104 268.8)
-
Step 500
500
#6884DA
oklch(63.1% 0.134 268.8)
-
Step 600
600
#516CC7
oklch(55.6% 0.144 268.9)
-
Step 700
700
#425AAC
oklch(49.2% 0.134 268.8)
-
Step 800
800
#364A8B
oklch(42.7% 0.11 268.6)
-
Step 900
900
#2F3E6F
oklch(37.7% 0.086 269.2)
-
Step 950
950 (this color)
#0D1530
oklch(20.5% 0.055 268.8)
#0D1530 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) | #081831 | 0.011 |
| Deuteranopia (no green cones) | #04152F | 0.013 |
| Tritanopia (no blue cones) | #001B20 | 0.047 |
| Achromatopsia (no color) | #171717 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1530
#0D1530
oklch(20.5% 0.055 268.8)
- #1F1600
#1F1600
oklch(20.6% 0.042 89.1)
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 #0D1530, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Navy Blue #001146 ΔE 0.048
- Rich Navy #001219 ΔE 0.054
- Dark #1B2431 ΔE 0.060
- Dark Navy #000435 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.065
- Night Blue #040348 ΔE 0.067
- Midnight #03012D ΔE 0.071
Use #0D1530 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.