#40C877
Closest named color: Dark Mint (#48C072). oklch(74% 0.165 153), rgb(64, 200, 119).
Aa
Black text reads best on this color (9.74:1).
About this color
#40C877 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.165 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.022 away. Black text reads best on it, at 9.74:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.74:1 |
| White text | 2.15:1 |
Values
| HEX | #40C877 |
| RGB | rgb(64, 200, 119) |
| HSL | hsl(144, 55%, 52%) |
| OKLCH | oklch(74% 0.165 153) |
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 #40C877 | 2.15:1 | Fails | Lc -46.6 | Large or bold text, headings |
| Black text on #40C877 | 9.74:1 | AAA | Lc 62.0 | Content text, not long reading |
| #40C877 text on white | 2.15:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #40C877 text on black | 9.74:1 | AAA | Lc -60.3 | Content text, not long reading |
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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0E1
oklch(93.6% 0.029 153.3)
-
Step 200
200
#BDE5C8
oklch(88.5% 0.058 153.6)
-
Step 300
300
#8BD4A1
oklch(80.8% 0.103 153.2)
-
Step 400
400 (this color)
#40C877
oklch(74% 0.165 153)
-
Step 500
500
#00A457
oklch(63% 0.162 153)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#40C877 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) | #C8B871 | 0.143 |
| Deuteranopia (no green cones) | #B7AC7C | 0.140 |
| Tritanopia (no blue cones) | #00C5B4 | 0.086 |
| Achromatopsia (no color) | #B1B1B1 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40C877
#40C877
oklch(74% 0.165 153)
- #E780D7
#E780D7
oklch(74.1% 0.165 333.1)
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 #40C877, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.022
- Algae Green #21C36F ΔE 0.023
- Seaweed #18D17B ΔE 0.026
- Dark Mint Green #20C073 ΔE 0.028
- Greenblue #23C48B ΔE 0.032
- Soft Green #6FC276 ΔE 0.035
- Green Blue #01C08D ΔE 0.045
- Cool Green #33B864 ΔE 0.048
Use #40C877 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.