#0D1121
Closest named color: Rich Navy (#001219). oklch(18.3% 0.033 272.1), rgb(13, 17, 33).
Aa
White text reads best on this color (18.76:1).
About this color
#0D1121 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.033 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.030 away. White text reads best on it, at 18.76:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.76:1 |
Values
| HEX | #0D1121 |
| RGB | rgb(13, 17, 33) |
| HSL | hsl(228, 43%, 9%) |
| OKLCH | oklch(18.3% 0.033 272.1) |
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 #0D1121 | 18.76:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #0D1121 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #0D1121 text on white | 18.76:1 | AAA | Lc 105.2 | Preferred for body text |
| #0D1121 text on black | 1.11:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D4D9E8
oklch(88.6% 0.021 271.2)
-
Step 300
300
#B7C0DB
oklch(80.9% 0.039 270.9)
-
Step 400
400
#929FC9
oklch(70.7% 0.063 271.3)
-
Step 500
500
#7887BB
oklch(63.2% 0.081 271.6)
-
Step 600
600
#6170A7
oklch(55.6% 0.088 271.7)
-
Step 700
700
#505D8F
oklch(49% 0.082 272)
-
Step 800
800
#424C74
oklch(42.6% 0.068 272.5)
-
Step 900
900
#38405E
oklch(37.8% 0.053 272.2)
-
Step 950
950 (this color)
#0D1121
oklch(18.3% 0.033 272.1)
#0D1121 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) | #0B1322 | 0.007 |
| Deuteranopia (no green cones) | #091121 | 0.007 |
| Tritanopia (no blue cones) | #061417 | 0.029 |
| Achromatopsia (no color) | #121212 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1121
#0D1121
oklch(18.3% 0.033 272.1)
- #171202
#171202
oklch(18.4% 0.033 94.5)
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 #0D1121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.030
- Rich Black #0D1B2A ΔE 0.037
- Almost Black #070D0D ΔE 0.044
- Dark Navy #000435 ΔE 0.067
- Midnight #03012D ΔE 0.068
- Dark Navy Blue #00022E ΔE 0.069
- Very Dark Blue #000133 ΔE 0.074
- Navy Blue #001146 ΔE 0.075
Use #0D1121 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.