#28B5CE
Closest named color: Turquoise Blue (#06B1C4). oklch(71.3% 0.117 213.1), rgb(40, 181, 206).
Aa
Black text reads best on this color (8.59:1).
About this color
#28B5CE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.117 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.020 away. Black text reads best on it, at 8.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #28B5CE |
| RGB | rgb(40, 181, 206) |
| HSL | hsl(189, 67%, 48%) |
| OKLCH | oklch(71.3% 0.117 213.1) |
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 #28B5CE | 2.44:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #28B5CE | 8.59:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #28B5CE text on white | 2.44:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #28B5CE text on black | 8.59:1 | AAA | Lc -54.4 | 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
#EEF7F9
oklch(97% 0.01 212.5)
-
Step 100
100
#DBEEF2
oklch(93.6% 0.021 211.8)
-
Step 200
200
#BCE1E9
oklch(88.6% 0.04 212.2)
-
Step 300
300
#88CDDD
oklch(80.8% 0.073 213.9)
-
Step 400
400 (this color)
#28B5CE
oklch(71.3% 0.117 213.1)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#28B5CE 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) | #A2AFCF | 0.106 |
| Deuteranopia (no green cones) | #8D9FCE | 0.096 |
| Tritanopia (no blue cones) | #00BFBD | 0.044 |
| Achromatopsia (no color) | #A6A6A6 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28B5CE
#28B5CE
oklch(71.3% 0.117 213.1)
- #E28672
#E28672
oklch(71.3% 0.117 33.1)
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 #28B5CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.020
- Light Sea Green #20B2AA ΔE 0.053
- Topaz #13BBAF ΔE 0.055
- Dark Turquoise #00CED1 ΔE 0.070
- Deep Sky Blue #00BFFF ΔE 0.070
- Vivid Sky Blue #4CC9F0 ΔE 0.072
- Greyblue #77A1B5 ΔE 0.072
- Cadet Blue #5F9EA0 ΔE 0.079
Use #28B5CE 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.