#0C231B
Closest named color: Jet (#212529). oklch(23.4% 0.033 168.3), rgb(12, 35, 27).
Aa
White text reads best on this color (16.51:1).
About this color
#0C231B is a very dark, muted green. In OKLCH its lightness is 23%, its chroma 0.033 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.043 away. White text reads best on it, at 16.51:1.
| Hue family | Greens |
| Lightness | very dark (23%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.27:1 |
| White text | 16.51:1 |
Values
| HEX | #0C231B |
| RGB | rgb(12, 35, 27) |
| HSL | hsl(159, 49%, 9%) |
| OKLCH | oklch(23.4% 0.033 168.3) |
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 #0C231B | 16.51:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #0C231B | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #0C231B text on white | 16.51:1 | AAA | Lc 103.4 | Preferred for body text |
| #0C231B text on black | 1.27:1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED6
oklch(88.5% 0.022 167.4)
-
Step 300
300
#A9C9BC
oklch(80.9% 0.039 168.8)
-
Step 400
400
#79AE99
oklch(70.7% 0.064 167.9)
-
Step 500
500
#549980
oklch(63% 0.081 168.2)
-
Step 600
600
#35846A
oklch(55.7% 0.088 168.4)
-
Step 700
700
#276F58
oklch(49% 0.081 168.5)
-
Step 800
800
#225B48
oklch(42.8% 0.068 168.1)
-
Step 900
900
#224B3C
oklch(37.8% 0.053 167.3)
-
Step 950
950 (this color)
#0C231B
oklch(23.4% 0.033 168.3)
#0C231B 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) | #22201B | 0.034 |
| Deuteranopia (no green cones) | #1E1E1C | 0.032 |
| Tritanopia (no blue cones) | #052321 | 0.012 |
| Achromatopsia (no color) | #1F1F1F | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C231B
#0C231B
oklch(23.4% 0.033 168.3)
- #2A1721
#2A1721
oklch(23.4% 0.035 347.3)
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 #0C231B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.049
- Dark #1B2431 ΔE 0.049
- Dark Forest Green #002D04 ΔE 0.059
- Very Dark Green #062E03 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.066
- Rich Navy #001219 ΔE 0.072
- Dark Brown #341C02 ΔE 0.073
Use #0C231B 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.