#64BFDE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76% 0.097 222.7), rgb(100, 191, 222).
Aa
Black text reads best on this color (10.04:1).
About this color
#64BFDE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.097 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.033 away. Black text reads best on it, at 10.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.04:1 |
| White text | 2.08:1 |
Values
| HEX | #64BFDE |
| RGB | rgb(100, 191, 222) |
| HSL | hsl(195, 65%, 63%) |
| OKLCH | oklch(76% 0.097 222.7) |
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 #64BFDE | 2.08:1 | Fails | Lc -45.3 | Large or bold text, headings |
| Black text on #64BFDE | 10.04:1 | AAA | Lc 63.3 | Content text, not long reading |
| #64BFDE text on white | 2.08:1 | Fails | Lc 40.7 | Non-text elements, placeholder text |
| #64BFDE text on black | 10.04:1 | AAA | Lc -61.6 | Content text, not long reading |
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 300.
-
Step 50
50
#EDF8FC
oklch(97.2% 0.013 221.4)
-
Step 100
100
#D7EFF8
oklch(93.7% 0.028 222.3)
-
Step 200
200
#B3E2F3
oklch(88.5% 0.054 222)
-
Step 300
300 (this color)
#64BFDE
oklch(76% 0.097 222.7)
-
Step 400
400
#00B2DB
oklch(70.8% 0.131 222.1)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#00495C
oklch(37.6% 0.07 222.6)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#64BFDE 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) | #ADBBE0 | 0.079 |
| Deuteranopia (no green cones) | #9BAEDE | 0.070 |
| Tritanopia (no blue cones) | #00C9C9 | 0.063 |
| Achromatopsia (no color) | #B3B3B3 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64BFDE
#64BFDE
oklch(76% 0.097 222.7)
- #E69D7F
#E69D7F
oklch(76.1% 0.097 43.2)
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 #64BFDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.046
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Bright Sky Blue #02CCFE ΔE 0.056
- Sky Blue #87CEEB ΔE 0.057
- Light Grey Blue #9DBCD4 ΔE 0.058
- Sky #82CAFC ΔE 0.058
- Deep Sky Blue #00BFFF ΔE 0.059
Use #64BFDE 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.