#55A4FA
Closest named color: Cornflower Blue (#6495ED). oklch(70.7% 0.149 252.4), rgb(85, 164, 250).
Aa
Black text reads best on this color (8.07:1).
About this color
#55A4FA is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.149 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.040 away. Black text reads best on it, at 8.07:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.07:1 |
| White text | 2.60:1 |
Values
| HEX | #55A4FA |
| RGB | rgb(85, 164, 250) |
| HSL | hsl(211, 94%, 66%) |
| OKLCH | oklch(70.7% 0.149 252.4) |
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 #55A4FA | 2.60:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #55A4FA | 8.07:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #55A4FA text on white | 2.60:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #55A4FA text on black | 8.07:1 | AAA | Lc -51.4 | 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
#C1DCFB
oklch(88.5% 0.052 252)
-
Step 300
300
#95C5FB
oklch(80.9% 0.092 251.9)
-
Step 400
400 (this color)
#55A4FA
oklch(70.7% 0.149 252.4)
-
Step 500
500
#038AF7
oklch(63.1% 0.19 252.3)
-
Step 600
600
#0074D1
oklch(55.7% 0.167 252.1)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427B
oklch(37.7% 0.113 252.1)
-
Step 950
950
#02274B
oklch(27.1% 0.078 252)
#55A4FA 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) | #7EA9FE | 0.045 |
| Deuteranopia (no green cones) | #6799F8 | 0.030 |
| Tritanopia (no blue cones) | #00B8C3 | 0.117 |
| Achromatopsia (no color) | #A0A0A0 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A4FA
#55A4FA
oklch(70.7% 0.149 252.4)
- #D88F0D
#D88F0D
oklch(70.7% 0.149 72.5)
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 #55A4FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.044
- Periwinkle Blue #8F99FB ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.067
- Dodger Blue #1E90FF ΔE 0.069
- Soft Blue #6488EA ΔE 0.072
- Deep Sky Blue #00BFFF ΔE 0.073
- Carolina Blue #8AB8FE ΔE 0.080
Use #55A4FA 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.