#45A9FC
Closest named color: Chefchaouen Blue (#4895EF). oklch(71.4% 0.152 247.2), rgb(69, 169, 252).
Aa
Black text reads best on this color (8.33:1).
About this color
#45A9FC is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.152 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.053 away. Black text reads best on it, at 8.33:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 8.33:1 |
| White text | 2.51:1 |
Values
| HEX | #45A9FC |
| RGB | rgb(69, 169, 252) |
| HSL | hsl(207, 97%, 63%) |
| OKLCH | oklch(71.4% 0.152 247.2) |
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 #45A9FC | 2.51:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #45A9FC | 8.33:1 | AAA | Lc 54.9 | Large or bold text, headings |
| #45A9FC text on white | 2.51:1 | Fails | Lc 49.1 | Large or bold text, headings |
| #45A9FC text on black | 8.33:1 | AAA | Lc -52.9 | 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
#DCECFC
oklch(93.6% 0.028 248.1)
-
Step 200
200
#BEDDFB
oklch(88.5% 0.053 247.6)
-
Step 300
300
#8EC7FB
oklch(81% 0.095 246.8)
-
Step 400
400 (this color)
#45A9FC
oklch(71.4% 0.152 247.2)
-
Step 500
500
#008EE8
oklch(63% 0.168 247.5)
-
Step 600
600
#0078C4
oklch(55.7% 0.147 247.1)
-
Step 700
700
#0064A5
oklch(49% 0.13 247.2)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950
#002847
oklch(27% 0.072 247.4)
#45A9FC 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) | #83ADFF | 0.059 |
| Deuteranopia (no green cones) | #699BFA | 0.043 |
| Tritanopia (no blue cones) | #00BDC7 | 0.111 |
| Achromatopsia (no color) | #A3A3A3 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45A9FC
#45A9FC
oklch(71.4% 0.152 247.2)
- #E08D16
#E08D16
oklch(71.3% 0.152 67.5)
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 #45A9FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.054
- Deep Sky Blue #00BFFF ΔE 0.059
- Dodger Blue #1E90FF ΔE 0.074
- Dark Sky Blue #448EE4 ΔE 0.075
- Periwinkle Blue #8F99FB ΔE 0.078
- Carolina Blue #8AB8FE ΔE 0.079
- Soft Blue #6488EA ΔE 0.085
Use #45A9FC 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.