#28ADD0
Closest named color: Turquoise Blue (#06B1C4). oklch(69.5% 0.118 220.7), rgb(40, 173, 208).
Aa
Black text reads best on this color (7.97:1).
About this color
#28ADD0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.118 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.026 away. Black text reads best on it, at 7.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.97:1 |
| White text | 2.63:1 |
Values
| HEX | #28ADD0 |
| RGB | rgb(40, 173, 208) |
| HSL | hsl(193, 68%, 49%) |
| OKLCH | oklch(69.5% 0.118 220.7) |
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 #28ADD0 | 2.63:1 | Fails | Lc -56.0 | Large or bold text, headings |
| Black text on #28ADD0 | 7.97:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #28ADD0 text on white | 2.63:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #28ADD0 text on black | 7.97:1 | AAA | Lc -51.1 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEEF4
oklch(93.7% 0.022 218.6)
-
Step 200
200
#BCE0EC
oklch(88.5% 0.041 220)
-
Step 300
300
#8ACCE2
oklch(80.9% 0.074 220.9)
-
Step 400
400 (this color)
#28ADD0
oklch(69.5% 0.118 220.7)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#28ADD0 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) | #98A8D2 | 0.097 |
| Deuteranopia (no green cones) | #8299D0 | 0.086 |
| Tritanopia (no blue cones) | #00B8B8 | 0.056 |
| Achromatopsia (no color) | #9F9F9F | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28ADD0
#28ADD0
oklch(69.5% 0.118 220.7)
- #DA8262
#DA8262
oklch(69.4% 0.118 40.6)
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 #28ADD0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.026
- Light Sea Green #20B2AA ΔE 0.064
- Greyblue #77A1B5 ΔE 0.066
- Topaz #13BBAF ΔE 0.073
- Cadet Blue #5F9EA0 ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.075
- Bluegrey #85A3B2 ΔE 0.079
- Bluey Grey #89A0B0 ΔE 0.086
Use #28ADD0 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.