#18BAAA
Closest named color: Topaz (#13BBAF). oklch(71% 0.123 183.9), rgb(24, 186, 170).
Aa
Black text reads best on this color (8.64:1).
About this color
#18BAAA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.123 and its hue 184°. 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 8.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.64:1 |
| White text | 2.42:1 |
Values
| HEX | #18BAAA |
| RGB | rgb(24, 186, 170) |
| HSL | hsl(174, 77%, 41%) |
| OKLCH | oklch(71% 0.123 183.9) |
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 #18BAAA | 2.42:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #18BAAA | 8.64:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #18BAAA text on white | 2.42:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #18BAAA text on black | 8.64:1 | AAA | Lc -54.7 | 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
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BBE3DC
oklch(88.5% 0.043 183.5)
-
Step 300
300
#86D1C6
oklch(80.9% 0.076 184.2)
-
Step 400
400 (this color)
#18BAAA
oklch(71% 0.123 183.9)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
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)
#18BAAA 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) | #B0AFA9 | 0.129 |
| Deuteranopia (no green cones) | #9CA0AC | 0.123 |
| Tritanopia (no blue cones) | #00BEB5 | 0.016 |
| Achromatopsia (no color) | #A6A6A6 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18BAAA
#18BAAA
oklch(71% 0.123 183.9)
- #E17F99
#E17F99
oklch(71% 0.124 3.7)
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 #18BAAA, 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 0.023
- Greeny Blue #42B395 ΔE 0.031
- Green Blue #01C08D ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.053
- Greenblue #23C48B ΔE 0.060
- Dark Seafoam #1FB57A ΔE 0.066
- Bluey Green #2BB179 ΔE 0.066
Use #18BAAA 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.