#12BCAB
Closest named color: Topaz (#13BBAF). oklch(71.5% 0.125 183.4), rgb(18, 188, 171).
Aa
Black text reads best on this color (8.80:1).
About this color
#12BCAB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.125 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.007 away. Black text reads best on it, at 8.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.80:1 |
| White text | 2.38:1 |
Values
| HEX | #12BCAB |
| RGB | rgb(18, 188, 171) |
| HSL | hsl(174, 83%, 40%) |
| OKLCH | oklch(71.5% 0.125 183.4) |
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 #12BCAB | 2.38:1 | Fails | Lc -51.3 | Large or bold text, headings |
| Black text on #12BCAB | 8.80:1 | AAA | Lc 57.6 | Large or bold text, headings |
| #12BCAB text on white | 2.38:1 | Fails | Lc 46.4 | Large or bold text, headings |
| #12BCAB text on black | 8.80:1 | AAA | Lc -55.6 | Large or bold text, headings |
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
#EEF8F6
oklch(97.1% 0.011 182.9)
-
Step 100
100
#DAEFEB
oklch(93.6% 0.023 183.2)
-
Step 200
200
#BAE3DC
oklch(88.5% 0.044 183.8)
-
Step 300
300
#85D2C6
oklch(81% 0.078 183.4)
-
Step 400
400 (this color)
#12BCAB
oklch(71.5% 0.125 183.4)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#12BCAB 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) | #B2B0AA | 0.132 |
| Deuteranopia (no green cones) | #9EA2AD | 0.125 |
| Tritanopia (no blue cones) | #00C0B7 | 0.018 |
| Achromatopsia (no color) | #A8A8A8 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12BCAB
#12BCAB
oklch(71.5% 0.125 183.4)
- #E3809B
#E3809B
oklch(71.5% 0.125 3.2)
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 #12BCAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.007
- Light Sea Green #20B2AA ΔE 0.029
- Greeny Blue #42B395 ΔE 0.034
- Green Blue #01C08D ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.056
- Greenblue #23C48B ΔE 0.057
- Dark Turquoise #00CED1 ΔE 0.064
- Dark Seafoam #1FB57A ΔE 0.066
Use #12BCAB 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.