#28AEB4
Closest named color: Light Sea Green (#20B2AA). oklch(68.6% 0.108 199.6), rgb(40, 174, 180).
Aa
Black text reads best on this color (7.80:1).
About this color
#28AEB4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.108 and its hue 200°. 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 7.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #28AEB4 |
| RGB | rgb(40, 174, 180) |
| HSL | hsl(183, 64%, 43%) |
| OKLCH | oklch(68.6% 0.108 199.6) |
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 #28AEB4 | 2.69:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #28AEB4 | 7.80:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #28AEB4 text on white | 2.69:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #28AEB4 text on black | 7.80:1 | AAA | Lc -50.1 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DCEEEF
oklch(93.6% 0.019 200.9)
-
Step 200
200
#BDE1E3
oklch(88.5% 0.038 200.6)
-
Step 300
300
#8BCED2
oklch(80.8% 0.068 200.7)
-
Step 400
400 (this color)
#28AEB4
oklch(68.6% 0.108 199.6)
-
Step 500
500
#009DA3
oklch(63.2% 0.108 199.6)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#28AEB4 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) | #A1A6B5 | 0.111 |
| Deuteranopia (no green cones) | #8D98B5 | 0.102 |
| Tritanopia (no blue cones) | #00B5B0 | 0.024 |
| Achromatopsia (no color) | #9E9E9E | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28AEB4
#28AEB4
oklch(68.6% 0.108 199.6)
- #D57E7F
#D57E7F
oklch(68.7% 0.108 19.5)
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 #28AEB4, 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
- Turquoise Blue #06B1C4 ΔE 0.023
- Topaz #13BBAF ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.052
- Greeny Blue #42B395 ΔE 0.053
- Dull Teal #5F9E8F ΔE 0.062
- Persian Green #2A9D8F ΔE 0.064
- Sea #3C9992 ΔE 0.066
Use #28AEB4 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.