#28AD9B
Closest named color: Light Sea Green (#20B2AA). oklch(67.5% 0.113 181.3), rgb(40, 173, 155).
Aa
Black text reads best on this color (7.54:1).
About this color
#28AD9B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.113 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.022 away. Black text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.54:1 |
| White text | 2.78:1 |
Values
| HEX | #28AD9B |
| RGB | rgb(40, 173, 155) |
| HSL | hsl(172, 62%, 42%) |
| OKLCH | oklch(67.5% 0.113 181.3) |
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 #28AD9B | 2.78:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #28AD9B | 7.54:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #28AD9B text on white | 2.78:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #28AD9B text on black | 7.54:1 | AAA | Lc -48.6 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DCEFEB
oklch(93.7% 0.021 181.9)
-
Step 200
200
#BEE2DB
oklch(88.5% 0.039 182.3)
-
Step 300
300
#8DD0C3
oklch(80.9% 0.07 181)
-
Step 400
400 (this color)
#28AD9B
oklch(67.5% 0.113 181.3)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#28AD9B 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) | #A5A29A | 0.120 |
| Deuteranopia (no green cones) | #93959D | 0.114 |
| Tritanopia (no blue cones) | #00B0A7 | 0.017 |
| Achromatopsia (no color) | #9B9B9B | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28AD9B
#28AD9B
oklch(67.5% 0.113 181.3)
- #CF7892
#CF7892
oklch(67.5% 0.112 1.3)
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 #28AD9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.022
- Greeny Blue #42B395 ΔE 0.027
- Topaz #13BBAF ΔE 0.042
- Persian Green #2A9D8F ΔE 0.046
- Dull Teal #5F9E8F ΔE 0.049
- Tea #65AB7C ΔE 0.053
- Bluey Green #2BB179 ΔE 0.054
- Dark Seafoam Green #3EAF76 ΔE 0.054
Use #28AD9B 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.