#55A0DA
Closest named color: Cornflower Blue (#6495ED). oklch(68.2% 0.114 244), rgb(85, 160, 218).
Aa
Black text reads best on this color (7.42:1).
About this color
#55A0DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.114 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.048 away. Black text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.42:1 |
| White text | 2.82:1 |
Values
| HEX | #55A0DA |
| RGB | rgb(85, 160, 218) |
| HSL | hsl(206, 64%, 59%) |
| OKLCH | oklch(68.2% 0.114 244) |
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 #55A0DA | 2.82:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #55A0DA | 7.42:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #55A0DA text on white | 2.82:1 | Fails | Lc 54.1 | Large or bold text, headings |
| #55A0DA text on black | 7.42:1 | AAA | Lc -47.8 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C4DDF2
oklch(88.6% 0.039 243.5)
-
Step 300
300
#9AC6EC
oklch(80.8% 0.071 244.9)
-
Step 400
400 (this color)
#55A0DA
oklch(68.2% 0.114 244)
-
Step 500
500
#1F91DA
oklch(63.2% 0.145 243.7)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#052941
oklch(27% 0.06 243.1)
#55A0DA 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) | #86A1DD | 0.053 |
| Deuteranopia (no green cones) | #7494D9 | 0.042 |
| Tritanopia (no blue cones) | #00AEB4 | 0.088 |
| Achromatopsia (no color) | #9A9A9A | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A0DA
#55A0DA
oklch(68.2% 0.114 244)
- #CA8947
#CA8947
oklch(68.3% 0.114 64.2)
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 #55A0DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.048
- Chefchaouen Blue #4895EF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.059
- Faded Blue #658CBB ΔE 0.062
- Greyblue #77A1B5 ΔE 0.063
- Turquoise Blue #06B1C4 ΔE 0.073
- Soft Blue #6488EA ΔE 0.074
- Bluegrey #85A3B2 ΔE 0.078
Use #55A0DA 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.