#64A4E7
Closest named color: Cornflower Blue (#6495ED). oklch(70.4% 0.119 250.9), rgb(100, 164, 231).
Aa
Black text reads best on this color (8.00:1).
About this color
#64A4E7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.119 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.044 away. Black text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.00:1 |
| White text | 2.62:1 |
Values
| HEX | #64A4E7 |
| RGB | rgb(100, 164, 231) |
| HSL | hsl(211, 73%, 65%) |
| OKLCH | oklch(70.4% 0.119 250.9) |
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 #64A4E7 | 2.62:1 | Fails | Lc -56.1 | Large or bold text, headings |
| Black text on #64A4E7 | 8.00:1 | AAA | Lc 53.0 | Large or bold text, headings |
| #64A4E7 text on white | 2.62:1 | Fails | Lc 51.0 | Large or bold text, headings |
| #64A4E7 text on black | 8.00:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF4
oklch(88.6% 0.041 250.6)
-
Step 300
300
#9DC5F0
oklch(81% 0.075 250.6)
-
Step 400
400 (this color)
#64A4E7
oklch(70.4% 0.119 250.9)
-
Step 500
500
#348DE1
oklch(63.1% 0.152 250.6)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800
#00508F
oklch(42.6% 0.123 250.8)
-
Step 900
900
#0D4374
oklch(37.7% 0.099 251)
-
Step 950
950
#0B2844
oklch(27.2% 0.062 250.6)
#64A4E7 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) | #88A7EA | 0.042 |
| Deuteranopia (no green cones) | #779AE6 | 0.031 |
| Tritanopia (no blue cones) | #00B3BC | 0.100 |
| Achromatopsia (no color) | #A0A0A0 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A4E7
#64A4E7
oklch(70.4% 0.119 250.9)
- #CE9243
#CE9243
oklch(70.4% 0.119 71)
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 #64A4E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.044
- Chefchaouen Blue #4895EF ΔE 0.054
- Periwinkle Blue #8F99FB ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.070
- Greyblue #77A1B5 ΔE 0.074
- Carolina Blue #8AB8FE ΔE 0.075
- Perrywinkle #8F8CE7 ΔE 0.076
- Soft Blue #6488EA ΔE 0.077
Use #64A4E7 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.