#55A4E4
Closest named color: Cornflower Blue (#6495ED). oklch(69.6% 0.122 245.3), rgb(85, 164, 228).
Aa
Black text reads best on this color (7.81:1).
About this color
#55A4E4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.122 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.046 away. Black text reads best on it, at 7.81:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.81:1 |
| White text | 2.68:1 |
Values
| HEX | #55A4E4 |
| RGB | rgb(85, 164, 228) |
| HSL | hsl(207, 73%, 61%) |
| OKLCH | oklch(69.6% 0.122 245.3) |
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 #55A4E4 | 2.68:1 | Fails | Lc -57.1 | Large or bold text, headings |
| Black text on #55A4E4 | 7.81:1 | AAA | Lc 52.1 | Large or bold text, headings |
| #55A4E4 text on white | 2.68:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #55A4E4 text on black | 7.81:1 | AAA | Lc -49.9 | 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
#DEECF8
oklch(93.6% 0.022 243.8)
-
Step 200
200
#C3DDF4
oklch(88.6% 0.042 245)
-
Step 300
300
#97C6EF
oklch(80.8% 0.077 245.3)
-
Step 400
400 (this color)
#55A4E4
oklch(69.6% 0.122 245.3)
-
Step 500
500
#0E90E1
oklch(63.2% 0.156 245.2)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#032944
oklch(27.1% 0.065 245.1)
#55A4E4 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) | #88A6E7 | 0.054 |
| Deuteranopia (no green cones) | #7498E3 | 0.041 |
| Tritanopia (no blue cones) | #00B3BA | 0.093 |
| Achromatopsia (no color) | #9E9E9E | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A4E4
#55A4E4
oklch(69.6% 0.122 245.3)
- #D18C42
#D18C42
oklch(69.6% 0.123 65.1)
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 #55A4E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.065
- Greyblue #77A1B5 ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.075
- Turquoise Blue #06B1C4 ΔE 0.077
- Soft Blue #6488EA ΔE 0.077
- Faded Blue #658CBB ΔE 0.078
Use #55A4E4 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.