#64CBDC
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.7% 0.098 209.6), rgb(100, 203, 220).
Aa
Black text reads best on this color (11.11:1).
About this color
#64CBDC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.098 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.034 away. Black text reads best on it, at 11.11:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.11:1 |
| White text | 1.88:1 |
Values
| HEX | #64CBDC |
| RGB | rgb(100, 203, 220) |
| HSL | hsl(189, 63%, 63%) |
| OKLCH | oklch(78.7% 0.098 209.6) |
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 #64CBDC | 1.88:1 | Fails | Lc -39.9 | Non-text elements, placeholder text |
| Black text on #64CBDC | 11.11:1 | AAA | Lc 68.2 | Content text, not long reading |
| #64CBDC text on white | 1.88:1 | Fails | Lc 35.7 | Non-text elements, placeholder text |
| #64CBDC text on black | 11.11:1 | AAA | Lc -66.8 | 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
#ECF8FA
oklch(97.1% 0.013 208.8)
-
Step 100
100
#D5F0F4
oklch(93.7% 0.029 207.4)
-
Step 200
200
#B0E4ED
oklch(88.6% 0.055 209.3)
-
Step 300
300 (this color)
#64CBDC
oklch(78.7% 0.098 209.6)
-
Step 400
400
#00B5CA
oklch(70.8% 0.122 209.4)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#64CBDC 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) | #BCC4DD | 0.094 |
| Deuteranopia (no green cones) | #A9B7DC | 0.085 |
| Tritanopia (no blue cones) | #00D3D0 | 0.049 |
| Achromatopsia (no color) | #BDBDBD | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64CBDC
#64CBDC
oklch(78.7% 0.098 209.6)
- #F2A295
#F2A295
oklch(78.8% 0.098 29.6)
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 #64CBDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.034
- Medium Turquoise #48D1CC ΔE 0.038
- Sky Blue #87CEEB ΔE 0.041
- Aqua Blue #02D8E9 ΔE 0.044
- Dark Turquoise #00CED1 ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.056
Use #64CBDC 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.