#39CA7B
Closest named color: Seaweed (#18D17B). oklch(74.5% 0.166 154.5), rgb(57, 202, 123).
Aa
Black text reads best on this color (9.90:1).
About this color
#39CA7B is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.166 and its hue 155°. 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 9.90:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 9.90:1 |
| White text | 2.11:1 |
Values
| HEX | #39CA7B |
| RGB | rgb(57, 202, 123) |
| HSL | hsl(147, 58%, 51%) |
| OKLCH | oklch(74.5% 0.166 154.5) |
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 #39CA7B | 2.11:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #39CA7B | 9.90:1 | AAA | Lc 62.8 | Content text, not long reading |
| #39CA7B text on white | 2.11:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #39CA7B text on black | 9.90:1 | AAA | Lc -61.2 | 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 400.
-
Step 50
50
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DBF0E1
oklch(93.6% 0.03 154.7)
-
Step 200
200
#BCE5C8
oklch(88.5% 0.058 154.3)
-
Step 300
300
#89D5A3
oklch(81% 0.104 154.6)
-
Step 400
400 (this color)
#39CA7B
oklch(74.5% 0.166 154.5)
-
Step 500
500
#00A45C
oklch(63.1% 0.158 154.5)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#39CA7B 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) | #C9BA76 | 0.146 |
| Deuteranopia (no green cones) | #B8AD80 | 0.144 |
| Tritanopia (no blue cones) | #00C8B6 | 0.082 |
| Achromatopsia (no color) | #B2B2B2 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39CA7B
#39CA7B
oklch(74.5% 0.166 154.5)
- #EA80D6
#EA80D6
oklch(74.4% 0.166 334.6)
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 #39CA7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.021
- Algae Green #21C36F ΔE 0.026
- Dark Mint #48C072 ΔE 0.027
- Greenblue #23C48B ΔE 0.032
- Dark Mint Green #20C073 ΔE 0.032
- Soft Green #6FC276 ΔE 0.039
- Green Blue #01C08D ΔE 0.045
- Emerald #06D6A0 ΔE 0.048
Use #39CA7B 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.