#39B979
Closest named color: Medium Sea Green (#3CB371). oklch(70% 0.146 157), rgb(57, 185, 121).
Aa
Black text reads best on this color (8.38:1).
About this color
#39B979 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.146 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.017 away. Black text reads best on it, at 8.38:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.38:1 |
| White text | 2.50:1 |
Values
| HEX | #39B979 |
| RGB | rgb(57, 185, 121) |
| HSL | hsl(150, 53%, 47%) |
| OKLCH | oklch(70% 0.146 157) |
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 #39B979 | 2.50:1 | Fails | Lc -53.8 | Large or bold text, headings |
| Black text on #39B979 | 8.38:1 | AAA | Lc 55.3 | Large or bold text, headings |
| #39B979 text on white | 2.50:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #39B979 text on black | 8.38:1 | AAA | Lc -53.2 | 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
#DCF0E3
oklch(93.7% 0.027 157.4)
-
Step 200
200
#BFE4CC
oklch(88.6% 0.051 156.8)
-
Step 300
300
#8ED3A9
oklch(80.9% 0.092 156.9)
-
Step 400
400 (this color)
#39B979
oklch(70% 0.146 157)
-
Step 500
500
#00A363
oklch(63% 0.15 157)
-
Step 600
600
#008A53
oklch(55.7% 0.133 157)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F37
oklch(42.7% 0.102 156.7)
-
Step 900
900
#004F2D
oklch(37.6% 0.09 156.8)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#39B979 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) | #B8AB75 | 0.133 |
| Deuteranopia (no green cones) | #A79F7D | 0.129 |
| Tritanopia (no blue cones) | #00B8A8 | 0.066 |
| Achromatopsia (no color) | #A4A4A4 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B979
#39B979
oklch(70% 0.146 157)
- #D778BF
#D778BF
oklch(70% 0.147 337.2)
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 #39B979, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.017
- Dark Seafoam #1FB57A ΔE 0.017
- Green Teal #0CB577 ΔE 0.020
- Dark Mint Green #20C073 ΔE 0.025
- Bluey Green #2BB179 ΔE 0.026
- Dark Mint #48C072 ΔE 0.027
- Cool Green #33B864 ΔE 0.027
- Green Blue #01C08D ΔE 0.027
Use #39B979 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.