#39B66E
Closest named color: Medium Sea Green (#3CB371). oklch(69% 0.152 153.8), rgb(57, 182, 110).
Aa
Black text reads best on this color (8.09:1).
About this color
#39B66E is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.152 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.011 away. Black text reads best on it, at 8.09:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.09:1 |
| White text | 2.59:1 |
Values
| HEX | #39B66E |
| RGB | rgb(57, 182, 110) |
| HSL | hsl(145, 52%, 47%) |
| OKLCH | oklch(69% 0.152 153.8) |
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 #39B66E | 2.59:1 | Fails | Lc -55.4 | Large or bold text, headings |
| Black text on #39B66E | 8.09:1 | AAA | Lc 53.7 | Large or bold text, headings |
| #39B66E text on white | 2.59:1 | Fails | Lc 50.3 | Large or bold text, headings |
| #39B66E text on black | 8.09:1 | AAA | Lc -51.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DDF0E2
oklch(93.7% 0.027 153.9)
-
Step 200
200
#BFE4C9
oklch(88.5% 0.053 153.5)
-
Step 300
300
#8FD3A4
oklch(80.9% 0.096 153.7)
-
Step 400
400 (this color)
#39B66E
oklch(69% 0.152 153.8)
-
Step 500
500
#00A45A
oklch(63.1% 0.159 153.9)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#39B66E 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) | #B6A769 | 0.133 |
| Deuteranopia (no green cones) | #A69C73 | 0.131 |
| Tritanopia (no blue cones) | #00B4A4 | 0.077 |
| Achromatopsia (no color) | #A1A1A1 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B66E
#39B66E
oklch(69% 0.152 153.8)
- #D274C2
#D274C2
oklch(68.9% 0.152 333.7)
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 #39B66E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.011
- Cool Green #33B864 ΔE 0.016
- Green Teal #0CB577 ΔE 0.018
- Dark Seafoam #1FB57A ΔE 0.018
- Jade Green #2BAF6A ΔE 0.023
- Bluey Green #2BB179 ΔE 0.024
- Dark Seafoam Green #3EAF76 ΔE 0.026
- Seaweed Green #35AD6B ΔE 0.026
Use #39B66E 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.