#0B121A
Closest named color: Rich Navy (#001219). oklch(17.9% 0.02 252.2), rgb(11, 18, 26).
Aa
White text reads best on this color (18.82:1).
About this color
#0B121A is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.020 away. White text reads best on it, at 18.82:1.
| Hue family | Neutrals |
| Lightness | very dark (18%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.82:1 |
Values
| HEX | #0B121A |
| RGB | rgb(11, 18, 26) |
| HSL | hsl(212, 41%, 7%) |
| OKLCH | oklch(17.9% 0.02 252.2) |
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 #0B121A | 18.82:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #0B121A | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #0B121A text on white | 18.82:1 | AAA | Lc 105.3 | Preferred for body text |
| #0B121A 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B6C2D0
oklch(80.9% 0.024 252.2)
-
Step 400
400
#90A3B8
oklch(70.8% 0.038 251)
-
Step 500
500
#758CA6
oklch(63.1% 0.047 251.7)
-
Step 600
600
#5D7692
oklch(55.7% 0.053 251.6)
-
Step 700
700
#4D637C
oklch(49.2% 0.048 252)
-
Step 800
800
#3F5165
oklch(42.8% 0.04 251.4)
-
Step 900
900
#364352
oklch(37.8% 0.031 252.3)
-
Step 950
950 (this color)
#0B121A
oklch(17.9% 0.02 252.2)
#0B121A 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) | #0F121A | 0.007 |
| Deuteranopia (no green cones) | #0D111A | 0.005 |
| Tritanopia (no blue cones) | #061415 | 0.017 |
| Achromatopsia (no color) | #111111 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B121A
#0B121A
oklch(17.9% 0.02 252.2)
- #171008
#171008
oklch(17.9% 0.019 70.3)
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 #0B121A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.020
- Almost Black #070D0D ΔE 0.031
- Rich Black #0D1B2A ΔE 0.042
- Very Dark Brown #1D0200 ΔE 0.076
- Dark Navy #000435 ΔE 0.079
- Midnight #03012D ΔE 0.079
- Dark #1B2431 ΔE 0.079
- Dark Navy Blue #00022E ΔE 0.079
Use #0B121A 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.