#55A1F2
Closest named color: Cornflower Blue (#6495ED). oklch(69.6% 0.142 251.8), rgb(85, 161, 242).
Aa
Black text reads best on this color (7.76:1).
About this color
#55A1F2 is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.142 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.032 away. Black text reads best on it, at 7.76:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.76:1 |
| White text | 2.70:1 |
Values
| HEX | #55A1F2 |
| RGB | rgb(85, 161, 242) |
| HSL | hsl(211, 86%, 64%) |
| OKLCH | oklch(69.6% 0.142 251.8) |
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 #55A1F2 | 2.70:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #55A1F2 | 7.76:1 | AAA | Lc 51.9 | Large or bold text, headings |
| #55A1F2 text on white | 2.70:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #55A1F2 text on black | 7.76:1 | AAA | Lc -49.7 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C2DCF9
oklch(88.5% 0.049 251.2)
-
Step 300
300
#97C5F9
oklch(81% 0.089 252)
-
Step 400
400 (this color)
#55A1F2
oklch(69.6% 0.142 251.8)
-
Step 500
500
#148BF2
oklch(63.1% 0.181 251.8)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#042749
oklch(27% 0.074 251.8)
#55A1F2 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) | #7EA5F5 | 0.044 |
| Deuteranopia (no green cones) | #6896F0 | 0.031 |
| Tritanopia (no blue cones) | #00B4BE | 0.112 |
| Achromatopsia (no color) | #9D9D9D | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A1F2
#55A1F2
oklch(69.6% 0.142 251.8)
- #D38C1D
#D38C1D
oklch(69.6% 0.142 71.4)
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 #55A1F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.032
- Chefchaouen Blue #4895EF ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.057
- Soft Blue #6488EA ΔE 0.064
- Dodger Blue #1E90FF ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.067
- Perrywinkle #8F8CE7 ΔE 0.078
- Deep Sky Blue #00BFFF ΔE 0.079
Use #55A1F2 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.