#42BC75
Closest named color: Dark Mint (#48C072). oklch(71% 0.15 154.1), rgb(66, 188, 117).
Aa
Black text reads best on this color (8.68:1).
About this color
#42BC75 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.150 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.014 away. Black text reads best on it, at 8.68:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 8.68:1 |
| White text | 2.41:1 |
Values
| HEX | #42BC75 |
| RGB | rgb(66, 188, 117) |
| HSL | hsl(145, 48%, 50%) |
| OKLCH | oklch(71% 0.15 154.1) |
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 #42BC75 | 2.41:1 | Fails | Lc -52.2 | Large or bold text, headings |
| Black text on #42BC75 | 8.68:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #42BC75 text on white | 2.41:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #42BC75 text on black | 8.68:1 | AAA | Lc -54.8 | 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
#DDF0E2
oklch(93.7% 0.027 153.9)
-
Step 200
200
#BFE4CA
oklch(88.5% 0.053 154.6)
-
Step 300
300
#90D3A5
oklch(81% 0.094 153.9)
-
Step 400
400 (this color)
#42BC75
oklch(71% 0.15 154.1)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
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)
#42BC75 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) | #BCAD70 | 0.133 |
| Deuteranopia (no green cones) | #ACA27A | 0.130 |
| Tritanopia (no blue cones) | #00BAAA | 0.075 |
| Achromatopsia (no color) | #A7A7A7 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42BC75
#42BC75
oklch(71% 0.15 154.1)
- #D97BC8
#D97BC8
oklch(71.1% 0.15 334.1)
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 #42BC75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.014
- Dark Mint Green #20C073 ΔE 0.018
- Cool Green #33B864 ΔE 0.025
- Medium Sea Green #3CB371 ΔE 0.027
- Algae Green #21C36F ΔE 0.027
- Dark Seafoam #1FB57A ΔE 0.029
- Greenblue #23C48B ΔE 0.030
- Boring Green #63B365 ΔE 0.031
Use #42BC75 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.