#55A4FC
Closest named color: Cornflower Blue (#6495ED). oklch(70.8% 0.151 252.9), rgb(85, 164, 252).
Aa
Black text reads best on this color (8.10:1).
About this color
#55A4FC is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.151 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.041 away. Black text reads best on it, at 8.10:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.10:1 |
| White text | 2.59:1 |
Values
| HEX | #55A4FC |
| RGB | rgb(85, 164, 252) |
| HSL | hsl(212, 97%, 66%) |
| OKLCH | oklch(70.8% 0.151 252.9) |
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 #55A4FC | 2.59:1 | Fails | Lc -55.5 | Large or bold text, headings |
| Black text on #55A4FC | 8.10:1 | AAA | Lc 53.7 | Large or bold text, headings |
| #55A4FC text on white | 2.59:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #55A4FC text on black | 8.10:1 | AAA | Lc -51.6 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDEBFC
oklch(93.5% 0.028 253.2)
-
Step 200
200
#C1DCFC
oklch(88.5% 0.053 252.8)
-
Step 300
300
#95C5FD
oklch(81% 0.095 252.8)
-
Step 400
400 (this color)
#55A4FC
oklch(70.8% 0.151 252.9)
-
Step 500
500
#0289F9
oklch(63% 0.193 252.9)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0061B3
oklch(49.2% 0.151 252.8)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417C
oklch(37.6% 0.116 253)
-
Step 950
950
#02264C
oklch(26.9% 0.081 253.5)
#55A4FC 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) | #7DA9FF | 0.043 |
| Deuteranopia (no green cones) | #659AFA | 0.027 |
| Tritanopia (no blue cones) | #00B8C4 | 0.118 |
| Achromatopsia (no color) | #A1A1A1 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A4FC
#55A4FC
oklch(70.8% 0.151 252.9)
- #D98F00
#D98F00
oklch(70.8% 0.151 72.7)
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 #55A4FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.045
- Periwinkle Blue #8F99FB ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.068
- Dodger Blue #1E90FF ΔE 0.068
- Soft Blue #6488EA ΔE 0.072
- Deep Sky Blue #00BFFF ΔE 0.073
- Carolina Blue #8AB8FE ΔE 0.080
Use #55A4FC 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.