#28D8D3
Closest named color: Medium Turquoise (#48D1CC). oklch(80% 0.131 191.8), rgb(40, 216, 211).
Aa
Black text reads best on this color (11.85:1).
About this color
#28D8D3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.131 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.020 away. Black text reads best on it, at 11.85:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.85:1 |
| White text | 1.77:1 |
Values
| HEX | #28D8D3 |
| RGB | rgb(40, 216, 211) |
| HSL | hsl(178, 69%, 50%) |
| OKLCH | oklch(80% 0.131 191.8) |
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 #28D8D3 | 1.77:1 | Fails | Lc -36.0 | Non-text elements, placeholder text |
| Black text on #28D8D3 | 11.85:1 | AAA | Lc 71.8 | Content text, not long reading |
| #28D8D3 text on white | 1.77:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #28D8D3 text on black | 11.85:1 | AAA | Lc -70.7 | Content text, not long reading |
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 300.
-
Step 50
50
#E9F9F8
oklch(97% 0.017 192.4)
-
Step 100
100
#CEF2F0
oklch(93.5% 0.037 192.4)
-
Step 200
200
#A0E9E5
oklch(88.5% 0.073 191.6)
-
Step 300
300 (this color)
#28D8D3
oklch(80% 0.131 191.8)
-
Step 400
400
#00B8B4
oklch(70.7% 0.121 192)
-
Step 500
500
#009E9A
oklch(63.2% 0.109 191.6)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706D
oklch(49.2% 0.085 191.5)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#28D8D3 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) | #CACCD3 | 0.138 |
| Deuteranopia (no green cones) | #B3BBD4 | 0.130 |
| Tritanopia (no blue cones) | #00DED6 | 0.016 |
| Achromatopsia (no color) | #C3C3C3 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28D8D3
#28D8D3
oklch(80% 0.131 191.8)
- #FF9EAA
#FF9EAA
oklch(80.1% 0.116 12)
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 #28D8D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.020
- Turquoise #40E0D0 ΔE 0.027
- Dark Turquoise #00CED1 ΔE 0.030
- Aqua Blue #02D8E9 ΔE 0.032
- Seafoam Blue #78D1B6 ΔE 0.053
- Medium Aquamarine #66CDAA ΔE 0.057
- Pale Teal #82CBB2 ΔE 0.064
- Aqua Marine #2EE8BB ΔE 0.065
Use #28D8D3 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.