#55A6B5
Closest named color: Cadet Blue (#5F9EA0). oklch(68% 0.082 211.1), rgb(85, 166, 181).
Aa
Black text reads best on this color (7.50:1).
About this color
#55A6B5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.082 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.032 away. Black text reads best on it, at 7.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.50:1 |
| White text | 2.79:1 |
Values
| HEX | #55A6B5 |
| RGB | rgb(85, 166, 181) |
| HSL | hsl(189, 39%, 52%) |
| OKLCH | oklch(68% 0.082 211.1) |
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 #55A6B5 | 2.79:1 | Fails | Lc -58.9 | Large or bold text, headings |
| Black text on #55A6B5 | 7.50:1 | AAA | Lc 50.4 | Large or bold text, headings |
| #55A6B5 text on white | 2.79:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #55A6B5 text on black | 7.50:1 | AAA | Lc -48.2 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C5DFE4
oklch(88.6% 0.028 210.5)
-
Step 300
300
#9BCAD3
oklch(80.9% 0.051 210.6)
-
Step 400
400 (this color)
#55A6B5
oklch(68% 0.082 211.1)
-
Step 500
500
#1A9AAD
oklch(63.1% 0.105 210.8)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#052C32
oklch(27% 0.043 210.1)
#55A6B5 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) | #99A1B6 | 0.076 |
| Deuteranopia (no green cones) | #8B96B5 | 0.070 |
| Tritanopia (no blue cones) | #07ADAA | 0.046 |
| Achromatopsia (no color) | #9A9A9A | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A6B5
#55A6B5
oklch(68% 0.082 211.1)
- #C68579
#C68579
oklch(68% 0.083 30.9)
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 #55A6B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.032
- Greyblue #77A1B5 ΔE 0.035
- Turquoise Blue #06B1C4 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.054
- Bluey Grey #89A0B0 ΔE 0.055
- Grey Teal #5E9B8A ΔE 0.062
Use #55A6B5 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.