#18B697
Closest named color: Greeny Blue (#42B395). oklch(69.5% 0.128 174.2), rgb(24, 182, 151).
Aa
Black text reads best on this color (8.17:1).
About this color
#18B697 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.128 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.017 away. Black text reads best on it, at 8.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #18B697 |
| RGB | rgb(24, 182, 151) |
| HSL | hsl(168, 77%, 40%) |
| OKLCH | oklch(69.5% 0.128 174.2) |
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 #18B697 | 2.56:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #18B697 | 8.17:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #18B697 text on white | 2.56:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #18B697 text on black | 8.17:1 | AAA | Lc -52.2 | 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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DBEFE9
oklch(93.6% 0.023 175.9)
-
Step 200
200
#BCE3D7
oklch(88.5% 0.044 174.6)
-
Step 300
300
#88D2BD
oklch(80.9% 0.08 174.4)
-
Step 400
400 (this color)
#18B697
oklch(69.5% 0.128 174.2)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#18B697 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) | #AFAA96 | 0.133 |
| Deuteranopia (no green cones) | #9D9C99 | 0.128 |
| Tritanopia (no blue cones) | #00B8AD | 0.031 |
| Achromatopsia (no color) | #A1A1A1 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18B697
#18B697
oklch(69.5% 0.128 174.2)
- #D979A2
#D979A2
oklch(69.4% 0.128 353.9)
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 #18B697, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.017
- Topaz #13BBAF ΔE 0.034
- Light Sea Green #20B2AA ΔE 0.034
- Green Blue #01C08D ΔE 0.037
- Bluey Green #2BB179 ΔE 0.039
- Dark Seafoam #1FB57A ΔE 0.040
- Dark Seafoam Green #3EAF76 ΔE 0.043
- Green Teal #0CB577 ΔE 0.045
Use #18B697 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.