#64CCE1
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(79.1% 0.1 212.7), rgb(100, 204, 225).
Aa
Black text reads best on this color (11.26:1).
About this color
#64CCE1 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.100 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.029 away. Black text reads best on it, at 11.26:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.26:1 |
| White text | 1.86:1 |
Values
| HEX | #64CCE1 |
| RGB | rgb(100, 204, 225) |
| HSL | hsl(190, 68%, 64%) |
| OKLCH | oklch(79.1% 0.1 212.7) |
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 #64CCE1 | 1.86:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #64CCE1 | 11.26:1 | AAA | Lc 68.9 | Content text, not long reading |
| #64CCE1 text on white | 1.86:1 | Fails | Lc 35.0 | Non-text elements, placeholder text |
| #64CCE1 text on black | 11.26:1 | AAA | Lc -67.6 | 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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF5
oklch(93.5% 0.028 213.2)
-
Step 200
200
#AFE4EF
oklch(88.6% 0.056 211.8)
-
Step 300
300 (this color)
#64CCE1
oklch(79.1% 0.1 212.7)
-
Step 400
400
#00B4CE
oklch(70.7% 0.124 212.8)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#64CCE1 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) | #BCC6E2 | 0.093 |
| Deuteranopia (no green cones) | #A9B8E1 | 0.084 |
| Tritanopia (no blue cones) | #00D5D2 | 0.053 |
| Achromatopsia (no color) | #BEBEBE | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64CCE1
#64CCE1
oklch(79.1% 0.1 212.7)
- #F4A392
#F4A392
oklch(79.1% 0.1 32.4)
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 #64CCE1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.029
- Sky Blue #87CEEB ΔE 0.036
- Lightblue #7BC8F6 ΔE 0.042
- Aqua Blue #02D8E9 ΔE 0.042
- Medium Turquoise #48D1CC ΔE 0.043
- Dark Turquoise #00CED1 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.051
- Sky #82CAFC ΔE 0.051
Use #64CCE1 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.