#0F121F
Closest named color: Rich Navy (#001219). oklch(18.6% 0.027 273.6), rgb(15, 18, 31).
Aa
White text reads best on this color (18.63:1).
About this color
#0F121F is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.031 away. White text reads best on it, at 18.63:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.12:1 |
| White text | 18.63:1 |
Values
| HEX | #0F121F |
| RGB | rgb(15, 18, 31) |
| HSL | hsl(229, 35%, 9%) |
| OKLCH | oklch(18.6% 0.027 273.6) |
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 #0F121F | 18.63:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #0F121F | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #0F121F text on white | 18.63:1 | AAA | Lc 105.2 | Preferred for body text |
| #0F121F text on black | 1.12:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#BAC0D6
oklch(81% 0.032 273.6)
-
Step 400
400
#969FC1
oklch(70.7% 0.051 273.4)
-
Step 500
500
#7C87B2
oklch(63.1% 0.066 273.3)
-
Step 600
600
#66709D
oklch(55.5% 0.071 274.2)
-
Step 700
700
#555E87
oklch(49.2% 0.067 274.2)
-
Step 800
800
#454D6D
oklch(42.7% 0.054 273.1)
-
Step 900
900
#3A4059
oklch(37.7% 0.044 273.7)
-
Step 950
950 (this color)
#0F121F
oklch(18.6% 0.027 273.6)
#0F121F 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) | #0E1320 | 0.004 |
| Deuteranopia (no green cones) | #0C121F | 0.005 |
| Tritanopia (no blue cones) | #0A1517 | 0.025 |
| Achromatopsia (no color) | #131313 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F121F
#0F121F
oklch(18.6% 0.027 273.6)
- #171305
#171305
oklch(18.7% 0.027 94.7)
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 #0F121F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.035
- Almost Black #070D0D ΔE 0.043
- Dark #1B2431 ΔE 0.072
- Dark Navy #000435 ΔE 0.074
- Midnight #03012D ΔE 0.075
- Dark Navy Blue #00022E ΔE 0.077
- Jet #212529 ΔE 0.078
Use #0F121F 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.