#55B4AA
Closest named color: Light Sea Green (#20B2AA). oklch(71% 0.091 186.2), rgb(85, 180, 170).
Aa
Black text reads best on this color (8.49:1).
About this color
#55B4AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.091 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.030 away. Black text reads best on it, at 8.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.49:1 |
| White text | 2.47:1 |
Values
| HEX | #55B4AA |
| RGB | rgb(85, 180, 170) |
| HSL | hsl(174, 39%, 52%) |
| OKLCH | oklch(71% 0.091 186.2) |
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 #55B4AA | 2.47:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #55B4AA | 8.49:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #55B4AA text on white | 2.47:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #55B4AA text on black | 8.49:1 | AAA | Lc -53.6 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DEEEEB
oklch(93.6% 0.017 183.5)
-
Step 200
200
#C3E0DC
oklch(88.4% 0.031 186.5)
-
Step 300
300
#97CDC6
oklch(80.9% 0.057 186.2)
-
Step 400
400 (this color)
#55B4AA
oklch(71% 0.091 186.2)
-
Step 500
500
#009F94
oklch(63.2% 0.111 186.2)
-
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)
#55B4AA 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) | #ACABAA | 0.098 |
| Deuteranopia (no green cones) | #9CA0AB | 0.091 |
| Tritanopia (no blue cones) | #14B8B1 | 0.029 |
| Achromatopsia (no color) | #A5A5A5 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55B4AA
#55B4AA
oklch(71% 0.091 186.2)
- #D38998
#D38998
oklch(71% 0.092 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 #55B4AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.030
- Topaz #13BBAF ΔE 0.032
- Greeny Blue #42B395 ΔE 0.035
- Turquoise Blue #06B1C4 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.061
- Tea #65AB7C ΔE 0.061
- Muted Teal #90B494 ΔE 0.063
- Dull Teal #5F9E8F ΔE 0.063
Use #55B4AA 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.