#12CC87
Closest named color: Seaweed (#18D17B). oklch(74.7% 0.167 159.8), rgb(18, 204, 135).
Aa
Black text reads best on this color (10.01:1).
About this color
#12CC87 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.167 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.024 away. Black text reads best on it, at 10.01:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.01:1 |
| White text | 2.09:1 |
Values
| HEX | #12CC87 |
| RGB | rgb(18, 204, 135) |
| HSL | hsl(158, 84%, 44%) |
| OKLCH | oklch(74.7% 0.167 159.8) |
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 #12CC87 | 2.09:1 | Fails | Lc -45.0 | Non-text elements, placeholder text |
| Black text on #12CC87 | 10.01:1 | AAA | Lc 63.5 | Content text, not long reading |
| #12CC87 text on white | 2.09:1 | Fails | Lc 40.4 | Non-text elements, placeholder text |
| #12CC87 text on black | 10.01:1 | AAA | Lc -61.9 | 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
#EEF9F2
oklch(97.2% 0.015 158.3)
-
Step 100
100
#DAF0E3
oklch(93.5% 0.029 159.9)
-
Step 200
200
#B9E6CC
oklch(88.6% 0.059 159.6)
-
Step 300
300
#82D6A9
oklch(81% 0.105 159.5)
-
Step 400
400 (this color)
#12CC87
oklch(74.7% 0.167 159.8)
-
Step 500
500
#00A36A
oklch(63.1% 0.143 159.7)
-
Step 600
600
#008959
oklch(55.6% 0.126 160)
-
Step 700
700
#00734A
oklch(49% 0.111 160)
-
Step 800
800
#005F3C
oklch(42.8% 0.097 159.8)
-
Step 900
900
#004F31
oklch(37.7% 0.086 159.7)
-
Step 950
950
#002F1C
oklch(26.9% 0.06 160.5)
#12CC87 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) | #C9BB83 | 0.156 |
| Deuteranopia (no green cones) | #B6AD8C | 0.153 |
| Tritanopia (no blue cones) | #00CBBA | 0.072 |
| Achromatopsia (no color) | #B3B3B3 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12CC87
#12CC87
oklch(74.7% 0.167 159.8)
- #F07FCE
#F07FCE
oklch(74.7% 0.166 339.8)
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 #12CC87, closest first.
No curated palette has a color within ΔE 0.04 of #12CC87.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.024
- Greenblue #23C48B ΔE 0.025
- Algae Green #21C36F ΔE 0.033
- Dark Mint #48C072 ΔE 0.036
- Dark Mint Green #20C073 ΔE 0.036
- Emerald #06D6A0 ΔE 0.037
- Green Blue #01C08D ΔE 0.039
- Soft Green #6FC276 ΔE 0.048
Use #12CC87 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.