#121E1A
Closest named color: Rich Black (#0D1B2A). oklch(22.2% 0.019 171.8), rgb(18, 30, 26).
Aa
White text reads best on this color (17.12:1).
About this color
#121E1A is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.037 away. White text reads best on it, at 17.12:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.12:1 |
Values
| HEX | #121E1A |
| RGB | rgb(18, 30, 26) |
| HSL | hsl(160, 25%, 9%) |
| OKLCH | oklch(22.2% 0.019 171.8) |
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 #121E1A | 17.12:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #121E1A | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #121E1A text on white | 17.12:1 | AAA | Lc 104.0 | Preferred for body text |
| #121E1A text on black | 1.22:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D1DCD8
oklch(88.5% 0.013 172.3)
-
Step 300
300
#B3C6BF
oklch(81% 0.023 171.6)
-
Step 400
400
#8BA89E
oklch(70.7% 0.035 172.3)
-
Step 500
500
#6E9386
oklch(63.2% 0.046 171.2)
-
Step 600
600
#557D70
oklch(55.6% 0.049 172.2)
-
Step 700
700
#45695E
oklch(49% 0.045 173.2)
-
Step 800
800
#39564C
oklch(42.7% 0.039 170.9)
-
Step 900
900
#314740
oklch(37.7% 0.03 172.9)
-
Step 950
950 (this color)
#121E1A
oklch(22.2% 0.019 171.8)
#121E1A 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) | #1D1C1A | 0.020 |
| Deuteranopia (no green cones) | #1B1B1A | 0.018 |
| Tritanopia (no blue cones) | #0F1E1D | 0.007 |
| Achromatopsia (no color) | #1C1C1C | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121E1A
#121E1A
oklch(22.2% 0.019 171.8)
- #22181C
#22181C
oklch(22.3% 0.018 352.7)
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 #121E1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.037
- Jet #212529 ΔE 0.044
- Dark #1B2431 ΔE 0.048
- Rich Navy #001219 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.066
- Dark Brown #341C02 ΔE 0.070
- Almost Black #070D0D ΔE 0.071
- Dark Forest Green #002D04 ΔE 0.076
Use #121E1A 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.