#64ABEF
Closest named color: Carolina Blue (#8AB8FE). oklch(72.3% 0.123 248.9), rgb(100, 171, 239).
Aa
Black text reads best on this color (8.61:1).
About this color
#64ABEF is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.123 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.059 away. Black text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.61:1 |
| White text | 2.43:1 |
Values
| HEX | #64ABEF |
| RGB | rgb(100, 171, 239) |
| HSL | hsl(209, 81%, 66%) |
| OKLCH | oklch(72.3% 0.123 248.9) |
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 #64ABEF | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #64ABEF | 8.61:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #64ABEF text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #64ABEF text on black | 8.61:1 | AAA | Lc -54.2 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF8
oklch(93.7% 0.021 245.9)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300
#9AC5F1
oklch(80.8% 0.078 249.4)
-
Step 400
400 (this color)
#64ABEF
oklch(72.3% 0.123 248.9)
-
Step 500
500
#278EE3
oklch(63.2% 0.156 248.8)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#024475
oklch(37.8% 0.102 248.7)
-
Step 950
950
#072844
oklch(27% 0.064 248.5)
#64ABEF 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) | #8EADF2 | 0.046 |
| Deuteranopia (no green cones) | #7CA0EE | 0.035 |
| Tritanopia (no blue cones) | #00BBC3 | 0.101 |
| Achromatopsia (no color) | #A6A6A6 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64ABEF
#64ABEF
oklch(72.3% 0.123 248.9)
- #D79647
#D79647
oklch(72.2% 0.123 68.8)
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 #64ABEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.059
- Deep Sky Blue #00BFFF ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.068
- Periwinkle Blue #8F99FB ΔE 0.069
- Vivid Sky Blue #4CC9F0 ΔE 0.082
- Greyblue #77A1B5 ΔE 0.083
- Lightblue #7BC8F6 ΔE 0.084
Use #64ABEF 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.