#64A4FD
Closest named color: Cornflower Blue (#6495ED). oklch(71.5% 0.147 256.9), rgb(100, 164, 253).
Aa
Black text reads best on this color (8.27:1).
About this color
#64A4FD is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.147 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.042 away. Black text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.27:1 |
| White text | 2.53:1 |
Values
| HEX | #64A4FD |
| RGB | rgb(100, 164, 253) |
| HSL | hsl(215, 97%, 69%) |
| OKLCH | oklch(71.5% 0.147 256.9) |
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 #64A4FD | 2.53:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #64A4FD | 8.27:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #64A4FD text on white | 2.53:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #64A4FD text on black | 8.27:1 | AAA | Lc -52.4 | 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
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C4DBFB
oklch(88.5% 0.051 256.7)
-
Step 300
300
#9BC3FC
oklch(80.9% 0.092 257.2)
-
Step 400
400 (this color)
#64A4FD
oklch(71.5% 0.147 256.9)
-
Step 500
500
#3187F8
oklch(63.2% 0.188 257)
-
Step 600
600
#006EE3
oklch(55.7% 0.197 256.9)
-
Step 700
700
#005CC0
oklch(49.1% 0.174 256.9)
-
Step 800
800
#004B9F
oklch(42.7% 0.151 256.9)
-
Step 900
900
#0B3F80
oklch(37.6% 0.122 257)
-
Step 950
950
#09264B
oklch(27.1% 0.077 256.3)
#64A4FD 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) | #7EAAFF | 0.033 |
| Deuteranopia (no green cones) | #699CFB | 0.020 |
| Tritanopia (no blue cones) | #00B8C5 | 0.122 |
| Achromatopsia (no color) | #A2A2A2 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A4FD
#64A4FD
oklch(71.5% 0.147 256.9)
- #D69510
#D69510
oklch(71.6% 0.147 76.9)
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 #64A4FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.042
- Periwinkle Blue #8F99FB ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.053
- Carolina Blue #8AB8FE ΔE 0.071
- Soft Blue #6488EA ΔE 0.074
- Perrywinkle #8F8CE7 ΔE 0.075
- Dark Sky Blue #448EE4 ΔE 0.075
- Dodger Blue #1E90FF ΔE 0.077
Use #64A4FD 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.