#042218
Closest named color: Rich Black (#0D1B2A). oklch(22.6% 0.041 167.3), rgb(4, 34, 24).
Aa
White text reads best on this color (16.83:1).
About this color
#042218 is a very dark, muted green. In OKLCH its lightness is 23%, its chroma 0.041 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.052 away. White text reads best on it, at 16.83:1.
| Hue family | Greens |
| Lightness | very dark (23%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.83:1 |
Values
| HEX | #042218 |
| RGB | rgb(4, 34, 24) |
| HSL | hsl(160, 79%, 7%) |
| OKLCH | oklch(22.6% 0.041 167.3) |
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 #042218 | 16.83:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #042218 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #042218 text on white | 16.83:1 | AAA | Lc 103.6 | Preferred for body text |
| #042218 text on black | 1.24:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A3CBBA
oklch(80.8% 0.049 167.4)
-
Step 400
400
#6FB097
oklch(70.6% 0.077 167.8)
-
Step 500
500
#429D7D
oklch(63.2% 0.1 167.1)
-
Step 600
600
#168766
oklch(55.6% 0.108 167.2)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800
#0B5D45
oklch(42.6% 0.083 167)
-
Step 900
900
#164C3A
oklch(37.6% 0.065 167.2)
-
Step 950
950 (this color)
#042218
oklch(22.6% 0.041 167.3)
#042218 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) | #211F17 | 0.041 |
| Deuteranopia (no green cones) | #1D1C19 | 0.040 |
| Tritanopia (no blue cones) | #00221F | 0.013 |
| Achromatopsia (no color) | #1D1D1D | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042218
#042218
oklch(22.6% 0.041 167.3)
- #2A1420
#2A1420
oklch(22.7% 0.041 346.9)
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 #042218, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.052
- Jet #212529 ΔE 0.054
- Dark Forest Green #002D04 ΔE 0.058
- Dark #1B2431 ΔE 0.059
- Very Dark Green #062E03 ΔE 0.061
- Rich Navy #001219 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.075
- Dark Brown #341C02 ΔE 0.080
Use #042218 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.