#15ACC9
Closest named color: Turquoise Blue (#06B1C4). oklch(68.7% 0.119 216), rgb(21, 172, 201).
Aa
Black text reads best on this color (7.77:1).
About this color
#15ACC9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.119 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.018 away. Black text reads best on it, at 7.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.77:1 |
| White text | 2.70:1 |
Values
| HEX | #15ACC9 |
| RGB | rgb(21, 172, 201) |
| HSL | hsl(190, 81%, 44%) |
| OKLCH | oklch(68.7% 0.119 216) |
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 #15ACC9 | 2.70:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #15ACC9 | 7.77:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #15ACC9 text on white | 2.70:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #15ACC9 text on black | 7.77:1 | AAA | Lc -50.1 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DBEEF3
oklch(93.7% 0.021 215.3)
-
Step 200
200
#BBE1EB
oklch(88.6% 0.042 215.5)
-
Step 300
300
#88CDDF
oklch(80.9% 0.074 216)
-
Step 400
400 (this color)
#15ACC9
oklch(68.7% 0.119 216)
-
Step 500
500
#009AB4
oklch(63.2% 0.112 215.3)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#15ACC9 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) | #98A6CB | 0.104 |
| Deuteranopia (no green cones) | #8297C9 | 0.092 |
| Tritanopia (no blue cones) | #00B6B5 | 0.048 |
| Achromatopsia (no color) | #9D9D9D | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15ACC9
#15ACC9
oklch(68.7% 0.119 216)
- #D97E66
#D97E66
oklch(68.7% 0.119 35.6)
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 #15ACC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.018
- Light Sea Green #20B2AA ΔE 0.055
- Cadet Blue #5F9EA0 ΔE 0.067
- Topaz #13BBAF ΔE 0.067
- Greyblue #77A1B5 ΔE 0.067
- Bluegrey #85A3B2 ΔE 0.081
- Sea #3C9992 ΔE 0.084
- Deep Sky Blue #00BFFF ΔE 0.085
Use #15ACC9 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.