#64CAE3
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.7% 0.101 216), rgb(100, 202, 227).
Aa
Black text reads best on this color (11.09:1).
About this color
#64CAE3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.101 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.024 away. Black text reads best on it, at 11.09:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.09:1 |
| White text | 1.89:1 |
Values
| HEX | #64CAE3 |
| RGB | rgb(100, 202, 227) |
| HSL | hsl(192, 69%, 64%) |
| OKLCH | oklch(78.7% 0.101 216) |
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 #64CAE3 | 1.89:1 | Fails | Lc -40.0 | Non-text elements, placeholder text |
| Black text on #64CAE3 | 11.09:1 | AAA | Lc 68.1 | Content text, not long reading |
| #64CAE3 text on white | 1.89:1 | Fails | Lc 35.7 | Non-text elements, placeholder text |
| #64CAE3 text on black | 11.09:1 | 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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF6
oklch(93.5% 0.029 215.7)
-
Step 200
200
#B0E3F1
oklch(88.5% 0.056 216.4)
-
Step 300
300 (this color)
#64CAE3
oklch(78.7% 0.101 216)
-
Step 400
400
#00B3D2
oklch(70.6% 0.125 216)
-
Step 500
500
#009AB5
oklch(63.2% 0.112 216)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#64CAE3 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) | #B9C5E4 | 0.090 |
| Deuteranopia (no green cones) | #A6B6E3 | 0.082 |
| Tritanopia (no blue cones) | #00D3D2 | 0.055 |
| Achromatopsia (no color) | #BCBCBC | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64CAE3
#64CAE3
oklch(78.7% 0.101 216)
- #F3A38D
#F3A38D
oklch(78.9% 0.101 36.1)
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 #64CAE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.024
- Sky Blue #87CEEB ΔE 0.037
- Lightblue #7BC8F6 ΔE 0.037
- Aqua Blue #02D8E9 ΔE 0.046
- Sky #82CAFC ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.048
- Light Sky Blue #87CEFA ΔE 0.049
- Bright Sky Blue #02CCFE ΔE 0.049
Use #64CAE3 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.