#55A8BB
Closest named color: Greyblue (#77A1B5). oklch(68.7% 0.085 214.6), rgb(85, 168, 187).
Aa
Black text reads best on this color (7.70:1).
About this color
#55A8BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.085 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.035 away. Black text reads best on it, at 7.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #55A8BB |
| RGB | rgb(85, 168, 187) |
| HSL | hsl(191, 43%, 53%) |
| OKLCH | oklch(68.7% 0.085 214.6) |
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 #55A8BB | 2.72:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #55A8BB | 7.70:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #55A8BB text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #55A8BB text on black | 7.70:1 | AAA | Lc -49.3 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE5
oklch(88.6% 0.03 212.6)
-
Step 300
300
#9ACAD6
oklch(80.9% 0.053 214.8)
-
Step 400
400 (this color)
#55A8BB
oklch(68.7% 0.085 214.6)
-
Step 500
500
#109AB2
oklch(63.2% 0.109 214.3)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#032C34
oklch(27% 0.045 214.2)
#55A8BB 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) | #9AA3BC | 0.077 |
| Deuteranopia (no green cones) | #8B98BB | 0.069 |
| Tritanopia (no blue cones) | #00AFAE | 0.048 |
| Achromatopsia (no color) | #9D9D9D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A8BB
#55A8BB
oklch(68.7% 0.085 214.6)
- #C98777
#C98777
oklch(68.6% 0.085 34.2)
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 #55A8BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.035
- Turquoise Blue #06B1C4 ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.055
- Dull Teal #5F9E8F ΔE 0.062
- Cool Gray #8D99AE ΔE 0.067
Use #55A8BB 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.