#12CC97
Closest named color: Greenblue (#23C48B). oklch(75% 0.154 165.8), rgb(18, 204, 151).
Aa
Black text reads best on this color (10.10:1).
About this color
#12CC97 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.154 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.023 away. Black text reads best on it, at 10.10:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 10.10:1 |
| White text | 2.07:1 |
Values
| HEX | #12CC97 |
| RGB | rgb(18, 204, 151) |
| HSL | hsl(163, 84%, 44%) |
| OKLCH | oklch(75% 0.154 165.8) |
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 #12CC97 | 2.07:1 | Fails | Lc -44.5 | Non-text elements, placeholder text |
| Black text on #12CC97 | 10.10:1 | AAA | Lc 64.0 | Content text, not long reading |
| #12CC97 text on white | 2.07:1 | Fails | Lc 40.0 | Non-text elements, placeholder text |
| #12CC97 text on black | 10.10:1 | AAA | Lc -62.4 | 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
#EEF8F3
oklch(97% 0.012 164.8)
-
Step 100
100
#DAF0E5
oklch(93.6% 0.027 164.4)
-
Step 200
200
#B9E5D1
oklch(88.5% 0.053 165.8)
-
Step 300
300
#81D5B2
oklch(81% 0.097 165.6)
-
Step 400
400 (this color)
#12CC97
oklch(75% 0.154 165.8)
-
Step 500
500
#00A277
oklch(63.2% 0.131 166)
-
Step 600
600
#008863
oklch(55.6% 0.116 165.8)
-
Step 700
700
#007353
oklch(49.2% 0.103 165.6)
-
Step 800
800
#005E43
oklch(42.7% 0.089 165.5)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#12CC97 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) | #C7BD94 | 0.151 |
| Deuteranopia (no green cones) | #B3AE9B | 0.147 |
| Tritanopia (no blue cones) | #00CDBD | 0.053 |
| Achromatopsia (no color) | #B4B4B4 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12CC97
#12CC97
oklch(75% 0.154 165.8)
- #F283C3
#F283C3
oklch(75.1% 0.154 345.8)
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 #12CC97, closest first.
No curated palette has a color within ΔE 0.04 of #12CC97.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.023
- Emerald #06D6A0 ΔE 0.028
- Green Blue #01C08D ΔE 0.035
- Seaweed #18D17B ΔE 0.043
- Dark Mint #48C072 ΔE 0.048
- Dark Mint Green #20C073 ΔE 0.049
- Algae Green #21C36F ΔE 0.050
- Medium Aquamarine #66CDAA ΔE 0.052
Use #12CC97 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.