#64DBF9
Closest named color: Sky Blue (#87CEEB). oklch(83.5% 0.114 217), rgb(100, 219, 249).
Aa
Black text reads best on this color (13.04:1).
About this color
#64DBF9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.114 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.040 away. Black text reads best on it, at 13.04:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.04:1 |
| White text | 1.61:1 |
Values
| HEX | #64DBF9 |
| RGB | rgb(100, 219, 249) |
| HSL | hsl(192, 93%, 68%) |
| OKLCH | oklch(83.5% 0.114 217) |
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 #64DBF9 | 1.61:1 | Fails | Lc -30.7 | Non-text elements, placeholder text |
| Black text on #64DBF9 | 13.04:1 | AAA | Lc 76.6 | Fine for body text |
| #64DBF9 text on white | 1.61:1 | Fails | Lc 27.2 | Dividers and decoration only |
| #64DBF9 text on black | 13.04:1 | AAA | Lc -75.8 | Fine for body text |
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
#EBF8FC
oklch(97.1% 0.015 218)
-
Step 100
100
#D2F0F8
oklch(93.6% 0.033 215.6)
-
Step 200
200
#AAE4F5
oklch(88.5% 0.063 217.8)
-
Step 300
300 (this color)
#64DBF9
oklch(83.5% 0.114 217)
-
Step 400
400
#00B3D3
oklch(70.7% 0.126 216.7)
-
Step 500
500
#0099B6
oklch(63% 0.113 217.6)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#64DBF9 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) | #C7D5FB | 0.100 |
| Deuteranopia (no green cones) | #B1C5F9 | 0.090 |
| Tritanopia (no blue cones) | #00E6E4 | 0.059 |
| Achromatopsia (no color) | #CCCCCC | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64DBF9
#64DBF9
oklch(83.5% 0.114 217)
- #FFB49E
#FFB49E
oklch(83.5% 0.093 37)
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 #64DBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.043
- Aqua Blue #02D8E9 ΔE 0.046
- Robin's Egg #6DEDFD ΔE 0.050
- Sky #82CAFC ΔE 0.051
- Lightblue #7BC8F6 ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.054
- Bright Sky Blue #02CCFE ΔE 0.061
Use #64DBF9 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.