#183121
Closest named color: Pakistan Green (#283618). oklch(28.7% 0.043 154.6), rgb(24, 49, 33).
Aa
White text reads best on this color (13.99:1).
About this color
#183121 is a dark, muted green. In OKLCH its lightness is 29%, its chroma 0.043 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.033 away. White text reads best on it, at 13.99:1.
| Hue family | Greens |
| Lightness | dark (29%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.50:1 |
| White text | 13.99:1 |
Values
| HEX | #183121 |
| RGB | rgb(24, 49, 33) |
| HSL | hsl(142, 34%, 14%) |
| OKLCH | oklch(28.7% 0.043 154.6) |
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 #183121 | 13.99:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #183121 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #183121 text on white | 13.99:1 | AAA | Lc 100.6 | Preferred for body text |
| #183121 text on black | 1.50:1 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CBDFD1
oklch(88.5% 0.029 155.2)
-
Step 300
300
#A8CBB2
oklch(81% 0.051 154.1)
-
Step 400
400
#77B08A
oklch(70.7% 0.082 154.6)
-
Step 500
500
#519C6D
oklch(63.1% 0.104 154.6)
-
Step 600
600
#308655
oklch(55.5% 0.113 154.9)
-
Step 700
700
#217245
oklch(49.2% 0.106 154.7)
-
Step 800
800
#1E5D39
oklch(42.8% 0.088 154.7)
-
Step 900
900
#204C31
oklch(37.7% 0.068 154.5)
-
Step 950
950 (this color)
#183121
oklch(28.7% 0.043 154.6)
#183121 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) | #312D20 | 0.039 |
| Deuteranopia (no green cones) | #2D2B22 | 0.037 |
| Tritanopia (no blue cones) | #13302D | 0.023 |
| Achromatopsia (no color) | #2C2C2C | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183121
#183121
oklch(28.7% 0.043 154.6)
- #382233
#382233
oklch(28.7% 0.044 335.3)
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 #183121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.033
- Very Dark Green #062E03 ΔE 0.048
- Dark Forest Green #002D04 ΔE 0.051
- Jet #212529 ΔE 0.051
- Dark #1B2431 ΔE 0.064
- Gunmetal #293241 ΔE 0.065
- Hunter Green #0B4008 ΔE 0.070
- Oxford Blue #1B263B ΔE 0.072
Use #183121 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.