#15AD9C
Closest named color: Light Sea Green (#20B2AA). oklch(67.3% 0.117 182.5), rgb(21, 173, 156).
Aa
Black text reads best on this color (7.48:1).
About this color
#15AD9C is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.117 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.023 away. Black text reads best on it, at 7.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.48:1 |
| White text | 2.80:1 |
Values
| HEX | #15AD9C |
| RGB | rgb(21, 173, 156) |
| HSL | hsl(173, 78%, 38%) |
| OKLCH | oklch(67.3% 0.117 182.5) |
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 #15AD9C | 2.80:1 | Fails | Lc -58.7 | Large or bold text, headings |
| Black text on #15AD9C | 7.48:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #15AD9C text on white | 2.80:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #15AD9C text on black | 7.48:1 | AAA | Lc -48.4 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BDE2DB
oklch(88.4% 0.04 182.6)
-
Step 300
300
#8AD1C4
oklch(81% 0.074 181.6)
-
Step 400
400 (this color)
#15AD9C
oklch(67.3% 0.117 182.5)
-
Step 500
500
#009F8F
oklch(63.1% 0.113 182.5)
-
Step 600
600
#008678
oklch(55.6% 0.1 182.2)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#15AD9C 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) | #A4A29B | 0.124 |
| Deuteranopia (no green cones) | #92959E | 0.118 |
| Tritanopia (no blue cones) | #00B1A8 | 0.018 |
| Achromatopsia (no color) | #9A9A9A | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15AD9C
#15AD9C
oklch(67.3% 0.117 182.5)
- #D17690
#D17690
oklch(67.3% 0.117 2.4)
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 #15AD9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.023
- Greeny Blue #42B395 ΔE 0.030
- Topaz #13BBAF ΔE 0.043
- Persian Green #2A9D8F ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.053
- Blue Green #0F9B8E ΔE 0.053
- Bluey Green #2BB179 ΔE 0.055
- Jade #1FA774 ΔE 0.055
Use #15AD9C 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.