#55BDB2
Closest named color: Topaz (#13BBAF). oklch(73.4% 0.098 186), rgb(85, 189, 178).
Aa
Black text reads best on this color (9.30:1).
About this color
#55BDB2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.098 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.032 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #55BDB2 |
| RGB | rgb(85, 189, 178) |
| HSL | hsl(174, 44%, 54%) |
| OKLCH | oklch(73.4% 0.098 186) |
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 #55BDB2 | 2.25:1 | Fails | Lc -49.1 | Large or bold text, headings |
| Black text on #55BDB2 | 9.30:1 | AAA | Lc 59.7 | Large or bold text, headings |
| #55BDB2 text on white | 2.25:1 | Fails | Lc 44.2 | Non-text elements, placeholder text |
| #55BDB2 text on black | 9.30:1 | AAA | Lc -57.9 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DEEEEB
oklch(93.6% 0.017 183.5)
-
Step 200
200
#C1E1DC
oklch(88.5% 0.034 185.1)
-
Step 300
300
#93CEC6
oklch(80.9% 0.062 185.6)
-
Step 400
400 (this color)
#55BDB2
oklch(73.4% 0.098 186)
-
Step 500
500
#009F93
oklch(63.2% 0.111 185.4)
-
Step 600
600
#00857C
oklch(55.5% 0.097 186.5)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#55BDB2 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) | #B4B4B2 | 0.104 |
| Deuteranopia (no green cones) | #A4A7B3 | 0.099 |
| Tritanopia (no blue cones) | #00C1B9 | 0.030 |
| Achromatopsia (no color) | #ADADAD | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55BDB2
#55BDB2
oklch(73.4% 0.098 186)
- #DE8F9F
#DE8F9F
oklch(73.5% 0.098 6.5)
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 #55BDB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.032
- Light Sea Green #20B2AA ΔE 0.046
- Greeny Blue #42B395 ΔE 0.049
- Medium Aquamarine #66CDAA ΔE 0.054
- Dark Turquoise #00CED1 ΔE 0.055
- Medium Turquoise #48D1CC ΔE 0.057
- Pale Teal #82CBB2 ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.061
Use #55BDB2 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.