#64A4E8
Closest named color: Cornflower Blue (#6495ED). oklch(70.4% 0.12 251.2), rgb(100, 164, 232).
Aa
Black text reads best on this color (8.01:1).
About this color
#64A4E8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.120 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.043 away. Black text reads best on it, at 8.01:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.01:1 |
| White text | 2.61:1 |
Values
| HEX | #64A4E8 |
| RGB | rgb(100, 164, 232) |
| HSL | hsl(211, 74%, 65%) |
| OKLCH | oklch(70.4% 0.12 251.2) |
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 #64A4E8 | 2.61:1 | Fails | Lc -56.1 | Large or bold text, headings |
| Black text on #64A4E8 | 8.01:1 | AAA | Lc 53.1 | Large or bold text, headings |
| #64A4E8 text on white | 2.61:1 | Fails | Lc 50.9 | Large or bold text, headings |
| #64A4E8 text on black | 8.01:1 | AAA | Lc -51.0 | 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
#C6DCF5
oklch(88.6% 0.042 251.7)
-
Step 300
300
#9DC5F0
oklch(81% 0.075 250.6)
-
Step 400
400 (this color)
#64A4E8
oklch(70.4% 0.12 251.2)
-
Step 500
500
#348CE2
oklch(63% 0.154 251.3)
-
Step 600
600
#0075CE
oklch(55.7% 0.162 251.1)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#0D4374
oklch(37.7% 0.099 251)
-
Step 950
950
#0B2744
oklch(26.9% 0.064 252.1)
#64A4E8 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) | #88A7EB | 0.042 |
| Deuteranopia (no green cones) | #769AE7 | 0.030 |
| Tritanopia (no blue cones) | #00B4BC | 0.103 |
| Achromatopsia (no color) | #A0A0A0 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A4E8
#64A4E8
oklch(70.4% 0.12 251.2)
- #CE9242
#CE9242
oklch(70.4% 0.12 71.3)
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 #64A4E8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.054
- Periwinkle Blue #8F99FB ΔE 0.065
- Dark Sky Blue #448EE4 ΔE 0.070
- Carolina Blue #8AB8FE ΔE 0.075
- Greyblue #77A1B5 ΔE 0.075
- Perrywinkle #8F8CE7 ΔE 0.076
- Soft Blue #6488EA ΔE 0.076
Use #64A4E8 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.