#55BFCC
Closest named color: Dark Turquoise (#00CED1). oklch(74.8% 0.098 206.2), rgb(85, 191, 204).
Aa
Black text reads best on this color (9.71:1).
About this color
#55BFCC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.098 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.045 away. Black text reads best on it, at 9.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 9.71:1 |
| White text | 2.16:1 |
Values
| HEX | #55BFCC |
| RGB | rgb(85, 191, 204) |
| HSL | hsl(187, 54%, 57%) |
| OKLCH | oklch(74.8% 0.098 206.2) |
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 #55BFCC | 2.16:1 | Fails | Lc -46.9 | Large or bold text, headings |
| Black text on #55BFCC | 9.71:1 | AAA | Lc 61.7 | Content text, not long reading |
| #55BFCC text on white | 2.16:1 | Fails | Lc 42.3 | Non-text elements, placeholder text |
| #55BFCC text on black | 9.71:1 | AAA | Lc -60.0 | 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
#DDEEF0
oklch(93.7% 0.018 205.3)
-
Step 200
200
#C0E0E4
oklch(88.5% 0.034 205.8)
-
Step 300
300
#91CDD4
oklch(81% 0.062 205.1)
-
Step 400
400 (this color)
#55BFCC
oklch(74.8% 0.098 206.2)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#55BFCC 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) | #B1B8CD | 0.097 |
| Deuteranopia (no green cones) | #9EAACC | 0.089 |
| Tritanopia (no blue cones) | #00C6C3 | 0.040 |
| Achromatopsia (no color) | #B0B0B0 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55BFCC
#55BFCC
oklch(74.8% 0.098 206.2)
- #E5958C
#E5958C
oklch(74.8% 0.098 26.7)
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 #55BFCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.045
- Medium Turquoise #48D1CC ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Topaz #13BBAF ΔE 0.056
- Turquoise Blue #06B1C4 ΔE 0.056
- Light Sea Green #20B2AA ΔE 0.067
- Aqua Blue #02D8E9 ΔE 0.069
- Pale Teal #82CBB2 ΔE 0.070
Use #55BFCC 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.