#40CC88
Closest named color: Greenblue (#23C48B). oklch(75.4% 0.155 157.7), rgb(64, 204, 136).
Aa
Black text reads best on this color (10.21:1).
About this color
#40CC88 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.155 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.029 away. Black text reads best on it, at 10.21:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 10.21:1 |
| White text | 2.05:1 |
Values
| HEX | #40CC88 |
| RGB | rgb(64, 204, 136) |
| HSL | hsl(151, 58%, 53%) |
| OKLCH | oklch(75.4% 0.155 157.7) |
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 #40CC88 | 2.05:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #40CC88 | 10.21:1 | AAA | Lc 64.2 | Content text, not long reading |
| #40CC88 text on white | 2.05:1 | Fails | Lc 39.7 | Non-text elements, placeholder text |
| #40CC88 text on black | 10.21:1 | AAA | Lc -62.6 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DBF0E3
oklch(93.6% 0.028 158.7)
-
Step 200
200
#BDE4CC
oklch(88.4% 0.052 158.1)
-
Step 300
300
#8AD4A8
oklch(80.9% 0.097 157.3)
-
Step 400
400 (this color)
#40CC88
oklch(75.4% 0.155 157.7)
-
Step 500
500
#00A365
oklch(63% 0.148 157.8)
-
Step 600
600
#008954
oklch(55.5% 0.13 157.7)
-
Step 700
700
#007446
oklch(49.2% 0.116 157.5)
-
Step 800
800
#005F39
oklch(42.8% 0.1 157.9)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#40CC88 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) | #CABC84 | 0.142 |
| Deuteranopia (no green cones) | #B9B08C | 0.139 |
| Tritanopia (no blue cones) | #00CBBA | 0.070 |
| Achromatopsia (no color) | #B5B5B5 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40CC88
#40CC88
oklch(75.4% 0.155 157.7)
- #ED86D2
#ED86D2
oklch(75.5% 0.155 337.6)
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 #40CC88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.029
- Seaweed #18D17B ΔE 0.029
- Emerald #06D6A0 ΔE 0.034
- Dark Mint #48C072 ΔE 0.036
- Soft Green #6FC276 ΔE 0.038
- Algae Green #21C36F ΔE 0.041
- Dark Mint Green #20C073 ΔE 0.043
- Green Blue #01C08D ΔE 0.044
Use #40CC88 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.