#64A5EA
Closest named color: Cornflower Blue (#6495ED). oklch(70.7% 0.122 251.2), rgb(100, 165, 234).
Aa
Black text reads best on this color (8.11:1).
About this color
#64A5EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.122 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.045 away. Black text reads best on it, at 8.11:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.11:1 |
| White text | 2.58:1 |
Values
| HEX | #64A5EA |
| RGB | rgb(100, 165, 234) |
| HSL | hsl(211, 76%, 65%) |
| OKLCH | oklch(70.7% 0.122 251.2) |
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 #64A5EA | 2.58:1 | Fails | Lc -55.5 | Large or bold text, headings |
| Black text on #64A5EA | 8.11:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #64A5EA text on white | 2.58:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #64A5EA text on black | 8.11:1 | AAA | Lc -51.5 | 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
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9DC5F1
oklch(81% 0.076 251.2)
-
Step 400
400 (this color)
#64A5EA
oklch(70.7% 0.122 251.2)
-
Step 500
500
#328CE3
oklch(63% 0.156 251.2)
-
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
#0B4375
oklch(37.8% 0.101 251)
-
Step 950
950
#0A2744
oklch(26.8% 0.064 251.5)
#64A5EA 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) | #88A8ED | 0.041 |
| Deuteranopia (no green cones) | #779BE9 | 0.031 |
| Tritanopia (no blue cones) | #00B5BD | 0.104 |
| Achromatopsia (no color) | #A1A1A1 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A5EA
#64A5EA
oklch(70.7% 0.122 251.2)
- #D09341
#D09341
oklch(70.8% 0.122 71.4)
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 #64A5EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.055
- Periwinkle Blue #8F99FB ΔE 0.064
- Carolina Blue #8AB8FE ΔE 0.072
- Dark Sky Blue #448EE4 ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.074
- Perrywinkle #8F8CE7 ΔE 0.077
- Greyblue #77A1B5 ΔE 0.078
Use #64A5EA 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.