#439F66
Closest named color: Jade (#1FA774). oklch(63.2% 0.123 153.7), rgb(67, 159, 102).
Aa
Black text reads best on this color (6.38:1).
About this color
#439F66 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.123 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.026 away. Black text reads best on it, at 6.38:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #439F66 |
| RGB | rgb(67, 159, 102) |
| HSL | hsl(143, 41%, 44%) |
| OKLCH | oklch(63.2% 0.123 153.7) |
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 #439F66 | 3.28:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #439F66 | 6.38:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #439F66 text on white | 3.28:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #439F66 text on black | 6.38:1 | AA | Lc -41.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E1EDE5
oklch(93.5% 0.017 156.9)
-
Step 200
200
#C9E0CF
oklch(88.5% 0.034 153.6)
-
Step 300
300
#A3CDAF
oklch(81% 0.061 153.8)
-
Step 400
400
#6FB285
oklch(70.6% 0.095 153.9)
-
Step 500
500 (this color)
#439F66
oklch(63.2% 0.123 153.7)
-
Step 600
600
#17894D
oklch(55.6% 0.133 153.8)
-
Step 700
700
#01743E
oklch(49.1% 0.124 153.9)
-
Step 800
800
#0C5F33
oklch(42.8% 0.104 153.5)
-
Step 900
900
#164E2D
oklch(37.8% 0.081 153.7)
-
Step 950
950
#0F2E1B
oklch(27.2% 0.051 154.1)
#439F66 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) | #9F9362 | 0.108 |
| Deuteranopia (no green cones) | #928A6A | 0.106 |
| Tritanopia (no blue cones) | #279D90 | 0.062 |
| Achromatopsia (no color) | #8E8E8E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439F66
#439F66
oklch(63.2% 0.123 153.7)
- #B66CA9
#B66CA9
oklch(63.3% 0.123 333.6)
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 #439F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.026
- Ocean Green #3D9973 ΔE 0.030
- Muted Green #5FA052 ΔE 0.032
- Seaweed Green #35AD6B ΔE 0.040
- Flat Green #699D4C ΔE 0.040
- Light Forest Green #4F9153 ΔE 0.040
- Algae #54AC68 ΔE 0.043
- Off Green #6BA353 ΔE 0.044
Use #439F66 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.