#183E2B
Closest named color: Evergreen (#05472A). oklch(33% 0.055 159.3), rgb(24, 62, 43).
Aa
White text reads best on this color (11.91:1).
About this color
#183E2B is a dark, muted green. In OKLCH its lightness is 33%, its chroma 0.055 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.033 away. White text reads best on it, at 11.91:1.
| Hue family | Greens |
| Lightness | dark (33%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #183E2B |
| RGB | rgb(24, 62, 43) |
| HSL | hsl(150, 44%, 17%) |
| OKLCH | oklch(33% 0.055 159.3) |
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 #183E2B | 11.91:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #183E2B | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #183E2B text on white | 11.91:1 | AAA | Lc 97.1 | Preferred for body text |
| #183E2B text on black | 1.76:1 | 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 900.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE7
oklch(93.5% 0.012 162)
-
Step 200
200
#CDDED4
oklch(88.5% 0.023 160.2)
-
Step 300
300
#ABC9B7
oklch(80.9% 0.041 159)
-
Step 400
400
#7CAE92
oklch(70.7% 0.067 159.5)
-
Step 500
500
#599977
oklch(63% 0.084 159.5)
-
Step 600
600
#3C8460
oklch(55.7% 0.092 159.4)
-
Step 700
700
#2D6F4F
oklch(49% 0.085 159.7)
-
Step 800
800
#275B41
oklch(42.8% 0.071 159.4)
-
Step 900
900 (this color)
#183E2B
oklch(33% 0.055 159.3)
-
Step 950
950
#162C20
oklch(27% 0.036 158.9)
#183E2B 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) | #3D392A | 0.052 |
| Deuteranopia (no green cones) | #38352C | 0.052 |
| Tritanopia (no blue cones) | #0B3E39 | 0.024 |
| Achromatopsia (no color) | #373737 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183E2B
#183E2B
oklch(33% 0.055 159.3)
- #482A3F
#482A3F
oklch(33.1% 0.055 338.8)
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 #183E2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.033
- Pakistan Green #283618 ΔE 0.033
- Pine Green #0A481E ΔE 0.046
- Hunter Green #0B4008 ΔE 0.050
- Forrest Green #154406 ΔE 0.055
- Dark Olive #373E02 ΔE 0.055
- Onyx #343A40 ΔE 0.059
- British Racing Green #05480D ΔE 0.061
Use #183E2B 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.