#1F4F33
Closest named color: Dark Blue Green (#005249). oklch(38.6% 0.071 155.3), rgb(31, 79, 51).
Aa
White text reads best on this color (9.44:1).
About this color
#1F4F33 is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.071 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.034 away. White text reads best on it, at 9.44:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #1F4F33 |
| RGB | rgb(31, 79, 51) |
| HSL | hsl(145, 44%, 22%) |
| OKLCH | oklch(38.6% 0.071 155.3) |
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 #1F4F33 | 9.44:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #1F4F33 | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #1F4F33 text on white | 9.44:1 | AAA | Lc 91.6 | Preferred for body text |
| #1F4F33 text on black | 2.22:1 | Fails | Lc -10.7 | 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 900.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CADFD1
oklch(88.4% 0.029 156.6)
-
Step 300
300
#A6CBB2
oklch(80.8% 0.053 155.5)
-
Step 400
400
#74B18A
oklch(70.8% 0.085 155.5)
-
Step 500
500
#4C9D6C
oklch(63.1% 0.109 155)
-
Step 600
600
#288754
oklch(55.5% 0.118 155.4)
-
Step 700
700
#197344
oklch(49.2% 0.111 155)
-
Step 800
800
#195D38
oklch(42.6% 0.091 155.1)
-
Step 900
900 (this color)
#1F4F33
oklch(38.6% 0.071 155.3)
-
Step 950
950
#122D1D
oklch(27% 0.045 155.8)
#1F4F33 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) | #4F4931 | 0.064 |
| Deuteranopia (no green cones) | #484435 | 0.063 |
| Tritanopia (no blue cones) | #104E48 | 0.036 |
| Achromatopsia (no color) | #464646 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4F33
#1F4F33
oklch(38.6% 0.071 155.3)
- #5B3453
#5B3453
oklch(38.5% 0.072 334.8)
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 #1F4F33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.034
- Evergreen #05472A ΔE 0.035
- Pine Green #0A481E ΔE 0.040
- Dark Teal #014D4E ΔE 0.048
- Pine #2B5D34 ΔE 0.050
- Spruce #0A5F38 ΔE 0.051
- Navy Green #35530A ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.052
Use #1F4F33 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.