#55A8E3
Closest named color: Cornflower Blue (#6495ED). oklch(70.4% 0.119 242), rgb(85, 168, 227).
Aa
Black text reads best on this color (8.09:1).
About this color
#55A8E3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.119 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.057 away. Black text reads best on it, at 8.09:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.09:1 |
| White text | 2.59:1 |
Values
| HEX | #55A8E3 |
| RGB | rgb(85, 168, 227) |
| HSL | hsl(205, 72%, 61%) |
| OKLCH | oklch(70.4% 0.119 242) |
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 #55A8E3 | 2.59:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #55A8E3 | 8.09:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #55A8E3 text on white | 2.59:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #55A8E3 text on black | 8.09:1 | AAA | Lc -51.5 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C2DDF3
oklch(88.5% 0.042 242.7)
-
Step 300
300
#96C7ED
oklch(80.9% 0.075 242.1)
-
Step 400
400 (this color)
#55A8E3
oklch(70.4% 0.119 242)
-
Step 500
500
#0092DB
oklch(63.2% 0.149 241.7)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#012942
oklch(26.9% 0.063 242.1)
#55A8E3 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) | #8EA9E6 | 0.060 |
| Deuteranopia (no green cones) | #7A9AE2 | 0.049 |
| Tritanopia (no blue cones) | #00B7BC | 0.089 |
| Achromatopsia (no color) | #A1A1A1 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A8E3
#55A8E3
oklch(70.4% 0.119 242)
- #D48E4C
#D48E4C
oklch(70.5% 0.118 62.2)
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 #55A8E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.061
- Deep Sky Blue #00BFFF ΔE 0.067
- Turquoise Blue #06B1C4 ΔE 0.069
- Greyblue #77A1B5 ΔE 0.069
- Dark Sky Blue #448EE4 ΔE 0.076
- Bluegrey #85A3B2 ΔE 0.080
- Carolina Blue #8AB8FE ΔE 0.080
Use #55A8E3 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.