#64A4EA
Closest named color: Cornflower Blue (#6495ED). oklch(70.5% 0.123 251.9), rgb(100, 164, 234).
Aa
Black text reads best on this color (8.04:1).
About this color
#64A4EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.123 and its hue 252°. 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 8.04:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.04:1 |
| White text | 2.61:1 |
Values
| HEX | #64A4EA |
| RGB | rgb(100, 164, 234) |
| HSL | hsl(211, 76%, 65%) |
| OKLCH | oklch(70.5% 0.123 251.9) |
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 #64A4EA | 2.61:1 | Fails | Lc -55.9 | Large or bold text, headings |
| Black text on #64A4EA | 8.04:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #64A4EA text on white | 2.61:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #64A4EA text on black | 8.04:1 | AAA | Lc -51.1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9DC4F1
oklch(80.8% 0.076 252.3)
-
Step 400
400 (this color)
#64A4EA
oklch(70.5% 0.123 251.9)
-
Step 500
500
#348CE4
oklch(63.1% 0.156 251.8)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#0D4375
oklch(37.8% 0.101 251.4)
-
Step 950
950
#0A2745
oklch(26.9% 0.066 252.2)
#64A4EA 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) | #87A7ED | 0.040 |
| Deuteranopia (no green cones) | #759AE9 | 0.030 |
| Tritanopia (no blue cones) | #00B4BD | 0.104 |
| Achromatopsia (no color) | #A0A0A0 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A4EA
#64A4EA
oklch(70.5% 0.123 251.9)
- #CF923F
#CF923F
oklch(70.5% 0.123 71.6)
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 #64A4EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.053
- Periwinkle Blue #8F99FB ΔE 0.063
- Dark Sky Blue #448EE4 ΔE 0.070
- Carolina Blue #8AB8FE ΔE 0.074
- Perrywinkle #8F8CE7 ΔE 0.075
- Soft Blue #6488EA ΔE 0.075
- Deep Sky Blue #00BFFF ΔE 0.076
Use #64A4EA 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.