#64C2DD
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76.7% 0.097 219), rgb(100, 194, 221).
Aa
Black text reads best on this color (10.30:1).
About this color
#64C2DD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.097 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.030 away. Black text reads best on it, at 10.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.30:1 |
| White text | 2.03:1 |
Values
| HEX | #64C2DD |
| RGB | rgb(100, 194, 221) |
| HSL | hsl(193, 64%, 63%) |
| OKLCH | oklch(76.7% 0.097 219) |
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 #64C2DD | 2.03:1 | Fails | Lc -44.0 | Non-text elements, placeholder text |
| Black text on #64C2DD | 10.30:1 | AAA | Lc 64.5 | Content text, not long reading |
| #64C2DD text on white | 2.03:1 | Fails | Lc 39.5 | Non-text elements, placeholder text |
| #64C2DD text on black | 10.30:1 | AAA | Lc -62.9 | 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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D6EFF7
oklch(93.6% 0.028 219)
-
Step 200
200
#B2E2F1
oklch(88.4% 0.054 218.9)
-
Step 300
300 (this color)
#64C2DD
oklch(76.7% 0.097 219)
-
Step 400
400
#00B2D6
oklch(70.6% 0.128 219.2)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#64C2DD 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) | #B1BDDF | 0.083 |
| Deuteranopia (no green cones) | #9FB0DD | 0.074 |
| Tritanopia (no blue cones) | #00CBCA | 0.059 |
| Achromatopsia (no color) | #B6B6B6 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64C2DD
#64C2DD
oklch(76.7% 0.097 219)
- #E99E85
#E99E85
oklch(76.7% 0.097 39.2)
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 #64C2DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.030
- Lightblue #7BC8F6 ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.051
- Sky Blue #87CEEB ΔE 0.051
- Bright Sky Blue #02CCFE ΔE 0.054
- Dark Turquoise #00CED1 ΔE 0.056
- Sky #82CAFC ΔE 0.057
- Light Grey Blue #9DBCD4 ΔE 0.057
Use #64C2DD 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.