#42BF80
Closest named color: Greenblue (#23C48B). oklch(72% 0.144 157.4), rgb(66, 191, 128).
Aa
Black text reads best on this color (8.99:1).
About this color
#42BF80 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.144 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.018 away. Black text reads best on it, at 8.99:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 8.99:1 |
| White text | 2.33:1 |
Values
| HEX | #42BF80 |
| RGB | rgb(66, 191, 128) |
| HSL | hsl(150, 49%, 50%) |
| OKLCH | oklch(72% 0.144 157.4) |
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 #42BF80 | 2.33:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #42BF80 | 8.99:1 | AAA | Lc 58.3 | Large or bold text, headings |
| #42BF80 text on white | 2.33:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #42BF80 text on black | 8.99:1 | AAA | Lc -56.4 | 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
#DCEFE3
oklch(93.5% 0.026 158.2)
-
Step 200
200
#BFE4CC
oklch(88.6% 0.051 156.8)
-
Step 300
300
#8FD3AA
oklch(81% 0.09 157.2)
-
Step 400
400 (this color)
#42BF80
oklch(72% 0.144 157.4)
-
Step 500
500
#00A364
oklch(63% 0.149 157.4)
-
Step 600
600
#008954
oklch(55.5% 0.13 157.7)
-
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
#002F1A
oklch(26.9% 0.063 158.2)
#42BF80 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) | #BEB17C | 0.132 |
| Deuteranopia (no green cones) | #ADA584 | 0.128 |
| Tritanopia (no blue cones) | #00BEAF | 0.067 |
| Achromatopsia (no color) | #AAAAAA | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42BF80
#42BF80
oklch(72% 0.144 157.4)
- #DD7FC5
#DD7FC5
oklch(72% 0.144 337.2)
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 #42BF80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.018
- Dark Mint #48C072 ΔE 0.019
- Green Blue #01C08D ΔE 0.022
- Dark Mint Green #20C073 ΔE 0.025
- Algae Green #21C36F ΔE 0.032
- Dark Seafoam #1FB57A ΔE 0.035
- Medium Sea Green #3CB371 ΔE 0.036
- Soft Green #6FC276 ΔE 0.037
Use #42BF80 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.