#1FBC5E
Closest named color: Cool Green (#33B864). oklch(69.9% 0.182 150.6), rgb(31, 188, 94).
Aa
Black text reads best on this color (8.41:1).
About this color
#1FBC5E is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.182 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.017 away. Black text reads best on it, at 8.41:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.41:1 |
| White text | 2.49:1 |
Values
| HEX | #1FBC5E |
| RGB | rgb(31, 188, 94) |
| HSL | hsl(144, 72%, 43%) |
| OKLCH | oklch(69.9% 0.182 150.6) |
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 #1FBC5E | 2.49:1 | Fails | Lc -53.5 | Large or bold text, headings |
| Black text on #1FBC5E | 8.41:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #1FBC5E text on white | 2.49:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #1FBC5E text on black | 8.41:1 | AAA | Lc -53.6 | 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
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DBF1DF
oklch(93.7% 0.033 150.8)
-
Step 200
200
#BCE6C4
oklch(88.6% 0.064 150.6)
-
Step 300
300
#88D69A
oklch(81% 0.115 150.5)
-
Step 400
400 (this color)
#1FBC5E
oklch(69.9% 0.182 150.6)
-
Step 500
500
#00A54E
oklch(63.1% 0.171 150.6)
-
Step 600
600
#008B40
oklch(55.7% 0.152 150.4)
-
Step 700
700
#007535
oklch(49.2% 0.134 150.5)
-
Step 800
800
#00602A
oklch(42.8% 0.117 150.4)
-
Step 900
900
#005022
oklch(37.7% 0.103 150.5)
-
Step 950
950
#003012
oklch(27% 0.073 150.7)
#1FBC5E 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) | #BDAB56 | 0.151 |
| Deuteranopia (no green cones) | #AC9F65 | 0.149 |
| Tritanopia (no blue cones) | #00B9A6 | 0.099 |
| Achromatopsia (no color) | #A4A4A4 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FBC5E
#1FBC5E
oklch(69.9% 0.182 150.6)
- #DB6ED2
#DB6ED2
oklch(69.9% 0.182 330.5)
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 #1FBC5E, closest first.
No curated palette has a color within ΔE 0.04 of #1FBC5E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.017
- Algae Green #21C36F ΔE 0.025
- Dark Mint Green #20C073 ΔE 0.025
- Shamrock Green #02C14D ΔE 0.027
- Shamrock #01B44C ΔE 0.029
- Leafy Green #51B73B ΔE 0.034
- Dark Mint #48C072 ΔE 0.034
- Medium Green #39AD48 ΔE 0.042
Use #1FBC5E 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.