#55A4FF
Closest named color: Cornflower Blue (#6495ED). oklch(71% 0.155 253.6), rgb(85, 164, 255).
Aa
Black text reads best on this color (8.14:1).
About this color
#55A4FF is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.155 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.043 away. Black text reads best on it, at 8.14:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.14:1 |
| White text | 2.57:1 |
Values
| HEX | #55A4FF |
| RGB | rgb(85, 164, 255) |
| HSL | hsl(212, 100%, 67%) |
| OKLCH | oklch(71% 0.155 253.6) |
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 #55A4FF | 2.57:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #55A4FF | 8.14:1 | AAA | Lc 53.9 | Large or bold text, headings |
| #55A4FF text on white | 2.57:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #55A4FF text on black | 8.14:1 | AAA | Lc -51.8 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDEBFD
oklch(93.5% 0.029 254.7)
-
Step 200
200
#C1DCFD
oklch(88.5% 0.054 253.6)
-
Step 300
300
#94C4FE
oklch(80.8% 0.097 253.6)
-
Step 400
400 (this color)
#55A4FF
oklch(71% 0.155 253.6)
-
Step 500
500
#0188FC
oklch(63% 0.198 253.7)
-
Step 600
600
#0072D5
oklch(55.5% 0.175 253.6)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417E
oklch(37.7% 0.118 253.6)
-
Step 950
950
#02264D
oklch(27% 0.082 254)
#55A4FF 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) | #7BAAFF | 0.042 |
| Deuteranopia (no green cones) | #639AFD | 0.027 |
| Tritanopia (no blue cones) | #00B9C5 | 0.122 |
| Achromatopsia (no color) | #A1A1A1 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A4FF
#55A4FF
oklch(71% 0.155 253.6)
- #D99000
#D99000
oklch(71% 0.151 73.3)
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 #55A4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.046
- Periwinkle Blue #8F99FB ΔE 0.064
- Dodger Blue #1E90FF ΔE 0.068
- Dark Sky Blue #448EE4 ΔE 0.070
- Soft Blue #6488EA ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.074
- Carolina Blue #8AB8FE ΔE 0.081
Use #55A4FF 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.