#12CAA4
Closest named color: Greenblue (#23C48B). oklch(74.9% 0.142 172.5), rgb(18, 202, 164).
Aa
Black text reads best on this color (10.00:1).
About this color
#12CAA4 is a medium-light, vivid teal or cyan. In OKLCH its lightness is 75%, its chroma 0.142 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.033 away. Black text reads best on it, at 10.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Greenblue (#23C48B) |
| Black text | 10.00:1 |
| White text | 2.09:1 |
Values
| HEX | #12CAA4 |
| RGB | rgb(18, 202, 164) |
| HSL | hsl(168, 84%, 43%) |
| OKLCH | oklch(74.9% 0.142 172.5) |
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 #12CAA4 | 2.09:1 | Fails | Lc -45.0 | Large or bold text, headings |
| Black text on #12CAA4 | 10.00:1 | AAA | Lc 63.5 | Content text, not long reading |
| #12CAA4 text on white | 2.09:1 | Fails | Lc 40.4 | Non-text elements, placeholder text |
| #12CAA4 text on black | 10.00:1 | AAA | Lc -61.8 | 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
#EEF8F4
oklch(97.1% 0.012 170.3)
-
Step 100
100
#DAF0E8
oklch(93.7% 0.025 171.9)
-
Step 200
200
#B9E4D6
oklch(88.4% 0.049 173.3)
-
Step 300
300
#81D4BB
oklch(81% 0.089 172.7)
-
Step 400
400 (this color)
#12CAA4
oklch(74.9% 0.142 172.5)
-
Step 500
500
#00A182
oklch(63.2% 0.122 172.6)
-
Step 600
600
#00876D
oklch(55.6% 0.107 172.9)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#12CAA4 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) | #C3BCA2 | 0.146 |
| Deuteranopia (no green cones) | #AEADA7 | 0.140 |
| Tritanopia (no blue cones) | #00CCBF | 0.037 |
| Achromatopsia (no color) | #B3B3B3 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12CAA4
#12CAA4
oklch(74.9% 0.142 172.5)
- #F185B6
#F185B6
oklch(74.8% 0.143 352.5)
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 #12CAA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.033
- Emerald #06D6A0 ΔE 0.037
- Green Blue #01C08D ΔE 0.038
- Medium Aquamarine #66CDAA ΔE 0.044
- Topaz #13BBAF ΔE 0.051
- Dark Mint #48C072 ΔE 0.062
- Greeny Blue #42B395 ΔE 0.062
- Dark Turquoise #00CED1 ΔE 0.063
Use #12CAA4 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.