#12CB8A
Closest named color: Greenblue (#23C48B). oklch(74.5% 0.163 161.1), rgb(18, 203, 138).
Aa
Black text reads best on this color (9.93:1).
About this color
#12CB8A is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.163 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.021 away. Black text reads best on it, at 9.93:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 9.93:1 |
| White text | 2.11:1 |
Values
| HEX | #12CB8A |
| RGB | rgb(18, 203, 138) |
| HSL | hsl(159, 84%, 43%) |
| OKLCH | oklch(74.5% 0.163 161.1) |
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 #12CB8A | 2.11:1 | Fails | Lc -45.4 | Large or bold text, headings |
| Black text on #12CB8A | 9.93:1 | AAA | Lc 63.2 | Content text, not long reading |
| #12CB8A text on white | 2.11:1 | Fails | Lc 40.8 | Non-text elements, placeholder text |
| #12CB8A text on black | 9.93:1 | AAA | Lc -61.5 | 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
#EEF8F2
oklch(97% 0.013 159.9)
-
Step 100
100
#DAF0E4
oklch(93.6% 0.028 162.1)
-
Step 200
200
#B9E5CD
oklch(88.4% 0.056 161.1)
-
Step 300
300
#82D5AB
oklch(80.8% 0.102 160.9)
-
Step 400
400 (this color)
#12CB8A
oklch(74.5% 0.163 161.1)
-
Step 500
500
#00A36D
oklch(63.2% 0.141 160.9)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3E
oklch(42.6% 0.094 161.6)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#12CB8A 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) | #C8BB86 | 0.155 |
| Deuteranopia (no green cones) | #B4AD8E | 0.150 |
| Tritanopia (no blue cones) | #00CABA | 0.068 |
| Achromatopsia (no color) | #B2B2B2 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12CB8A
#12CB8A
oklch(74.5% 0.163 161.1)
- #EF7FCB
#EF7FCB
oklch(74.4% 0.163 340.8)
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 #12CB8A, closest first.
No curated palette has a color within ΔE 0.04 of #12CB8A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.021
- Seaweed #18D17B ΔE 0.030
- Green Blue #01C08D ΔE 0.034
- Algae Green #21C36F ΔE 0.035
- Dark Mint #48C072 ΔE 0.036
- Dark Mint Green #20C073 ΔE 0.036
- Emerald #06D6A0 ΔE 0.036
- Soft Green #6FC276 ΔE 0.048
Use #12CB8A 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.