#15A8D3
Closest named color: Turquoise Blue (#06B1C4). oklch(68.2% 0.126 225.2), rgb(21, 168, 211).
Aa
Black text reads best on this color (7.57:1).
About this color
#15A8D3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.126 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.039 away. Black text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #15A8D3 |
| RGB | rgb(21, 168, 211) |
| HSL | hsl(194, 82%, 45%) |
| OKLCH | oklch(68.2% 0.126 225.2) |
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 #15A8D3 | 2.77:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #15A8D3 | 7.57:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #15A8D3 text on white | 2.77:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #15A8D3 text on black | 7.57:1 | AAA | Lc -48.9 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DBEDF6
oklch(93.5% 0.023 229.1)
-
Step 200
200
#BBE0EF
oklch(88.5% 0.044 224.4)
-
Step 300
300
#88CCE7
oklch(80.9% 0.078 225)
-
Step 400
400 (this color)
#15A8D3
oklch(68.2% 0.126 225.2)
-
Step 500
500
#0098C0
oklch(63.2% 0.12 225)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#15A8D3 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) | #90A4D5 | 0.095 |
| Deuteranopia (no green cones) | #7994D2 | 0.083 |
| Tritanopia (no blue cones) | #00B5B6 | 0.066 |
| Achromatopsia (no color) | #9B9B9B | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15A8D3
#15A8D3
oklch(68.2% 0.126 225.2)
- #D87E53
#D87E53
oklch(68.2% 0.126 45.5)
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 #15A8D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.039
- Greyblue #77A1B5 ΔE 0.072
- Light Sea Green #20B2AA ΔE 0.076
- Chefchaouen Blue #4895EF ΔE 0.077
- Cadet Blue #5F9EA0 ΔE 0.078
- Deep Sky Blue #00BFFF ΔE 0.080
- Dark Sky Blue #448EE4 ΔE 0.083
- Faded Blue #658CBB ΔE 0.084
Use #15A8D3 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.