#28D8BF
Closest named color: Turquoise (#40E0D0). oklch(79.4% 0.138 180), rgb(40, 216, 191).
Aa
Black text reads best on this color (11.66:1).
About this color
#28D8BF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.138 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.032 away. Black text reads best on it, at 11.66:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 11.66:1 |
| White text | 1.80:1 |
Values
| HEX | #28D8BF |
| RGB | rgb(40, 216, 191) |
| HSL | hsl(171, 69%, 50%) |
| OKLCH | oklch(79.4% 0.138 180) |
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 #28D8BF | 1.80:1 | Fails | Lc -36.9 | Non-text elements, placeholder text |
| Black text on #28D8BF | 11.66:1 | AAA | Lc 71.0 | Content text, not long reading |
| #28D8BF text on white | 1.80:1 | Fails | Lc 32.9 | Non-text elements, placeholder text |
| #28D8BF text on black | 11.66:1 | AAA | Lc -69.8 | 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
#E9FAF6
oklch(97.1% 0.019 180.3)
-
Step 100
100
#CEF3EB
oklch(93.6% 0.04 180.9)
-
Step 200
200
#A0EADB
oklch(88.4% 0.076 180.4)
-
Step 300
300 (this color)
#28D8BF
oklch(79.4% 0.138 180)
-
Step 400
400
#00BAA4
oklch(70.7% 0.128 180.3)
-
Step 500
500
#00A08C
oklch(63.2% 0.115 179.7)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005D51
oklch(42.9% 0.078 180)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#28D8BF 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) | #CECBBE | 0.145 |
| Deuteranopia (no green cones) | #B8BAC1 | 0.139 |
| Tritanopia (no blue cones) | #00DCD0 | 0.023 |
| Achromatopsia (no color) | #C1C1C1 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28D8BF
#28D8BF
oklch(79.4% 0.138 180)
- #FF97B8
#FF97B8
oklch(79.3% 0.13 0.1)
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 #28D8BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.032
- Medium Turquoise #48D1CC ΔE 0.034
- Medium Aquamarine #66CDAA ΔE 0.040
- Emerald #06D6A0 ΔE 0.044
- Dark Turquoise #00CED1 ΔE 0.045
- Seafoam Blue #78D1B6 ΔE 0.045
- Aqua Marine #2EE8BB ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.059
Use #28D8BF 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.