#1F583F
Closest named color: Pine (#2B5D34). oklch(41.5% 0.073 161.6), rgb(31, 88, 63).
Aa
White text reads best on this color (8.31:1).
About this color
#1F583F is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.073 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.028 away. White text reads best on it, at 8.31:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #1F583F |
| RGB | rgb(31, 88, 63) |
| HSL | hsl(154, 48%, 23%) |
| OKLCH | oklch(41.5% 0.073 161.6) |
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 #1F583F | 8.31:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #1F583F | 2.52:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #1F583F text on white | 8.31:1 | AAA | Lc 88.5 | Fine for body text |
| #1F583F text on black | 2.52:1 | Fails | Lc -13.7 | 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 800.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CCDED4
oklch(88.4% 0.024 161.7)
-
Step 300
300
#A9CAB8
oklch(81% 0.043 161.4)
-
Step 400
400
#7AAE93
oklch(70.6% 0.068 161.4)
-
Step 500
500
#559A79
oklch(63.1% 0.087 161.7)
-
Step 600
600
#368462
oklch(55.5% 0.094 162.1)
-
Step 700
700
#277051
oklch(49.1% 0.088 162)
-
Step 800
800 (this color)
#1F583F
oklch(41.5% 0.073 161.6)
-
Step 900
900
#224B38
oklch(37.7% 0.057 161.8)
-
Step 950
950
#152C21
oklch(27% 0.036 161.9)
#1F583F 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) | #57513E | 0.071 |
| Deuteranopia (no green cones) | #4F4C41 | 0.068 |
| Tritanopia (no blue cones) | #035851 | 0.030 |
| Achromatopsia (no color) | #4E4E4E | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F583F
#1F583F
oklch(41.5% 0.073 161.6)
- #673B57
#673B57
oklch(41.6% 0.073 342.1)
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 #1F583F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.028
- Spruce #0A5F38 ΔE 0.030
- Dark Blue Green #005249 ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.049
- Deep Teal #00555A ΔE 0.050
- Dark Teal #014D4E ΔE 0.054
- Navy Green #35530A ΔE 0.056
Use #1F583F 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.