#1FC370
Closest named color: Algae Green (#21C36F). oklch(72% 0.174 154.1), rgb(31, 195, 112).
Aa
Black text reads best on this color (9.09:1).
About this color
#1FC370 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.174 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.001 away. Black text reads best on it, at 9.09:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #1FC370 |
| RGB | rgb(31, 195, 112) |
| HSL | hsl(150, 73%, 44%) |
| OKLCH | oklch(72% 0.174 154.1) |
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 #1FC370 | 2.30:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #1FC370 | 9.09:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #1FC370 text on white | 2.30:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #1FC370 text on black | 9.09:1 | AAA | Lc -57.2 | 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
#EEF9F1
oklch(97.2% 0.016 154.5)
-
Step 100
100
#DBF0E0
oklch(93.5% 0.031 152.9)
-
Step 200
200
#BBE5C7
oklch(88.4% 0.06 154)
-
Step 300
300
#86D5A1
oklch(80.8% 0.108 154.4)
-
Step 400
400 (this color)
#1FC370
oklch(72% 0.174 154.1)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#1FC370 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) | #C3B26A | 0.153 |
| Deuteranopia (no green cones) | #B1A576 | 0.151 |
| Tritanopia (no blue cones) | #00C1AF | 0.088 |
| Achromatopsia (no color) | #ABABAB | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FC370
#1FC370
oklch(72% 0.174 154.1)
- #E476D1
#E476D1
oklch(72.1% 0.174 334.1)
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 #1FC370, closest first.
No curated palette has a color within ΔE 0.04 of #1FC370.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.001
- Dark Mint Green #20C073 ΔE 0.011
- Dark Mint #48C072 ΔE 0.019
- Cool Green #33B864 ΔE 0.030
- Greenblue #23C48B ΔE 0.035
- Seaweed #18D17B ΔE 0.039
- Shamrock Green #02C14D ΔE 0.039
- Green Blue #01C08D ΔE 0.041
Use #1FC370 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.