#0D152E
Closest named color: Rich Black (#0D1B2A). oklch(20.4% 0.051 268.3), rgb(13, 21, 46).
Aa
White text reads best on this color (18.04:1).
About this color
#0D152E is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.051 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 18.04:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.04:1 |
Values
| HEX | #0D152E |
| RGB | rgb(13, 21, 46) |
| HSL | hsl(225, 56%, 12%) |
| OKLCH | oklch(20.4% 0.051 268.3) |
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 #0D152E | 18.04:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #0D152E | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #0D152E text on white | 18.04:1 | AAA | Lc 104.7 | Preferred for body text |
| #0D152E 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F0
oklch(88.6% 0.033 268.7)
-
Step 300
300
#B0C0E9
oklch(80.9% 0.061 268.3)
-
Step 400
400
#879EDE
oklch(70.7% 0.098 268.7)
-
Step 500
500
#6A85D4
oklch(63.1% 0.123 268.4)
-
Step 600
600
#526DC2
oklch(55.5% 0.136 268.5)
-
Step 700
700
#435BA7
oklch(49.1% 0.125 268.4)
-
Step 800
800
#374B87
oklch(42.8% 0.103 268)
-
Step 900
900
#2F3F6C
oklch(37.7% 0.08 267.7)
-
Step 950
950 (this color)
#0D152E
oklch(20.4% 0.051 268.3)
#0D152E 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) | #0A182F | 0.010 |
| Deuteranopia (no green cones) | #06152D | 0.010 |
| Tritanopia (no blue cones) | #001B1F | 0.045 |
| Achromatopsia (no color) | #161616 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D152E
#0D152E
oklch(20.4% 0.051 268.3)
- #1F1500
#1F1500
oklch(20.3% 0.042 86.2)
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 #0D152E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Rich Navy #001219 ΔE 0.051
- Navy Blue #001146 ΔE 0.052
- Dark #1B2431 ΔE 0.059
- Dark Navy #000435 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.066
- Night Blue #040348 ΔE 0.070
- Almost Black #070D0D ΔE 0.071
Use #0D152E 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.