#45A4FC
Closest named color: Chefchaouen Blue (#4895EF). oklch(70.3% 0.157 249.7), rgb(69, 164, 252).
Aa
Black text reads best on this color (7.96:1).
About this color
#45A4FC is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.157 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.041 away. Black text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.96:1 |
| White text | 2.63:1 |
Values
| HEX | #45A4FC |
| RGB | rgb(69, 164, 252) |
| HSL | hsl(209, 97%, 63%) |
| OKLCH | oklch(70.3% 0.157 249.7) |
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 #45A4FC | 2.63:1 | Fails | Lc -56.1 | Large or bold text, headings |
| Black text on #45A4FC | 7.96:1 | AAA | Lc 53.0 | Large or bold text, headings |
| #45A4FC text on white | 2.63:1 | Fails | Lc 51.0 | Large or bold text, headings |
| #45A4FC text on black | 7.96:1 | AAA | Lc -50.9 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFD
oklch(93.6% 0.029 249.8)
-
Step 200
200
#BEDDFC
oklch(88.5% 0.054 248.4)
-
Step 300
300
#8FC6FE
oklch(80.9% 0.098 249.6)
-
Step 400
400 (this color)
#45A4FC
oklch(70.3% 0.157 249.7)
-
Step 500
500
#008CEF
oklch(63% 0.178 249.9)
-
Step 600
600
#0076CA
oklch(55.7% 0.156 249.7)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#004377
oklch(37.7% 0.106 249.9)
-
Step 950
950
#002749
oklch(26.8% 0.076 249.9)
#45A4FC 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) | #7CA9FF | 0.053 |
| Deuteranopia (no green cones) | #6198FA | 0.035 |
| Tritanopia (no blue cones) | #00B9C4 | 0.117 |
| Achromatopsia (no color) | #9F9F9F | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45A4FC
#45A4FC
oklch(70.3% 0.157 249.7)
- #DB8B00
#DB8B00
oklch(70.3% 0.153 69.5)
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 #45A4FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.041
- Cornflower Blue #6495ED ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.064
- Deep Sky Blue #00BFFF ΔE 0.072
- Soft Blue #6488EA ΔE 0.073
- Periwinkle Blue #8F99FB ΔE 0.075
- Carolina Blue #8AB8FE ΔE 0.089
Use #45A4FC 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.