#55A9CA
Closest named color: Turquoise Blue (#06B1C4). oklch(69.5% 0.094 226.3), rgb(85, 169, 202).
Aa
Black text reads best on this color (7.91:1).
About this color
#55A9CA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.094 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.041 away. Black text reads best on it, at 7.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.91:1 |
| White text | 2.65:1 |
Values
| HEX | #55A9CA |
| RGB | rgb(85, 169, 202) |
| HSL | hsl(197, 52%, 56%) |
| OKLCH | oklch(69.5% 0.094 226.3) |
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 #55A9CA | 2.65:1 | Fails | Lc -56.6 | Large or bold text, headings |
| Black text on #55A9CA | 7.91:1 | AAA | Lc 52.6 | Large or bold text, headings |
| #55A9CA text on white | 2.65:1 | Fails | Lc 51.4 | Large or bold text, headings |
| #55A9CA text on black | 7.91:1 | AAA | Lc -50.5 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C3DEEA
oklch(88.4% 0.033 226.4)
-
Step 300
300
#98C9DE
oklch(80.9% 0.059 226.2)
-
Step 400
400 (this color)
#55A9CA
oklch(69.5% 0.094 226.3)
-
Step 500
500
#0297C1
oklch(63% 0.121 226.4)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#022B39
oklch(27% 0.05 226.3)
#55A9CA 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) | #97A6CC | 0.071 |
| Deuteranopia (no green cones) | #8699CA | 0.064 |
| Tritanopia (no blue cones) | #00B3B4 | 0.061 |
| Achromatopsia (no color) | #9F9F9F | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A9CA
#55A9CA
oklch(69.5% 0.094 226.3)
- #CE8A6A
#CE8A6A
oklch(69.5% 0.095 45.9)
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 #55A9CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.041
- Greyblue #77A1B5 ΔE 0.042
- Bluegrey #85A3B2 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.061
- Cadet Blue #5F9EA0 ΔE 0.061
- Light Sea Green #20B2AA ΔE 0.069
- Cool Gray #8D99AE ΔE 0.071
- Cool Steel #97A7B3 ΔE 0.074
Use #55A9CA 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.