#39D288
Closest named color: Seaweed (#18D17B). oklch(76.8% 0.165 157.1), rgb(57, 210, 136).
Aa
Black text reads best on this color (10.74:1).
About this color
#39D288 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.165 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.021 away. Black text reads best on it, at 10.74:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.74:1 |
| White text | 1.95:1 |
Values
| HEX | #39D288 |
| RGB | rgb(57, 210, 136) |
| HSL | hsl(151, 63%, 52%) |
| OKLCH | oklch(76.8% 0.165 157.1) |
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 #39D288 | 1.95:1 | Fails | Lc -41.5 | Non-text elements, placeholder text |
| Black text on #39D288 | 10.74:1 | AAA | Lc 66.8 | Content text, not long reading |
| #39D288 text on white | 1.95:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #39D288 text on black | 10.74:1 | AAA | Lc -65.3 | Content text, not long reading |
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 300.
-
Step 50
50
#EAFAF0
oklch(97.1% 0.021 158.6)
-
Step 100
100
#D1F4DD
oklch(93.6% 0.048 156.6)
-
Step 200
200
#A6ECC1
oklch(88.5% 0.092 157)
-
Step 300
300 (this color)
#39D288
oklch(76.8% 0.165 157.1)
-
Step 400
400
#00BF75
oklch(70.8% 0.168 157.1)
-
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
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#39D288 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) | #D0C183 | 0.150 |
| Deuteranopia (no green cones) | #BEB48D | 0.147 |
| Tritanopia (no blue cones) | #00D0BF | 0.077 |
| Achromatopsia (no color) | #B9B9B9 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39D288
#39D288
oklch(76.8% 0.165 157.1)
- #F487D9
#F487D9
oklch(76.7% 0.164 337.1)
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 #39D288, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.021
- Emerald #06D6A0 ΔE 0.029
- Aqua Green #12E193 ΔE 0.040
- Greenblue #23C48B ΔE 0.044
- Soft Green #6FC276 ΔE 0.049
- Algae Green #21C36F ΔE 0.049
- Dark Mint #48C072 ΔE 0.050
- Dark Mint Green #20C073 ΔE 0.055
Use #39D288 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.