#1FBB71
Closest named color: Dark Mint Green (#20C073). oklch(69.9% 0.163 155.7), rgb(31, 187, 113).
Aa
Black text reads best on this color (8.40:1).
About this color
#1FBB71 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.163 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint Green (#20C073), ΔE 0.014 away. Black text reads best on it, at 8.40:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Dark Mint Green (#20C073) |
| Black text | 8.40:1 |
| White text | 2.49:1 |
Values
| HEX | #1FBB71 |
| RGB | rgb(31, 187, 113) |
| HSL | hsl(152, 72%, 43%) |
| OKLCH | oklch(69.9% 0.163 155.7) |
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 #1FBB71 | 2.49:1 | Fails | Lc -53.5 | Large or bold text, headings |
| Black text on #1FBB71 | 8.40:1 | AAA | Lc 55.5 | Large or bold text, headings |
| #1FBB71 text on white | 2.49:1 | Fails | Lc 48.5 | Large or bold text, headings |
| #1FBB71 text on black | 8.40:1 | AAA | Lc -53.5 | 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
#DBF0E2
oklch(93.6% 0.029 156.6)
-
Step 200
200
#BCE5CA
oklch(88.5% 0.056 156.2)
-
Step 300
300
#88D5A5
oklch(81% 0.103 155.9)
-
Step 400
400 (this color)
#1FBB71
oklch(69.9% 0.163 155.7)
-
Step 500
500
#00A460
oklch(63.2% 0.154 155.8)
-
Step 600
600
#008A50
oklch(55.7% 0.136 155.8)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#1FBB71 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) | #BAAB6C | 0.146 |
| Deuteranopia (no green cones) | #A99F76 | 0.143 |
| Tritanopia (no blue cones) | #00B9A8 | 0.078 |
| Achromatopsia (no color) | #A4A4A4 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FBB71
#1FBB71
oklch(69.9% 0.163 155.7)
- #DB73C5
#DB73C5
oklch(70% 0.163 335.7)
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 #1FBB71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint Green #20C073 ΔE 0.014
- Cool Green #33B864 ΔE 0.015
- Green Teal #0CB577 ΔE 0.022
- Dark Seafoam #1FB57A ΔE 0.024
- Medium Sea Green #3CB371 ΔE 0.025
- Algae Green #21C36F ΔE 0.025
- Dark Mint #48C072 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.033
Use #1FBB71 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.