#64D0FB
Closest named color: Lightblue (#7BC8F6). oklch(81% 0.116 227), rgb(100, 208, 251).
Aa
Black text reads best on this color (11.95:1).
About this color
#64D0FB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.116 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.025 away. Black text reads best on it, at 11.95:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 11.95:1 |
| White text | 1.75:1 |
Values
| HEX | #64D0FB |
| RGB | rgb(100, 208, 251) |
| HSL | hsl(197, 95%, 69%) |
| OKLCH | oklch(81% 0.116 227) |
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 #64D0FB | 1.75:1 | Fails | Lc -35.8 | Non-text elements, placeholder text |
| Black text on #64D0FB | 11.95:1 | AAA | Lc 72.0 | Content text, not long reading |
| #64D0FB text on white | 1.75:1 | Fails | Lc 31.9 | Non-text elements, placeholder text |
| #64D0FB text on black | 11.95:1 | AAA | Lc -70.8 | 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
#EBF8FE
oklch(97.1% 0.016 227)
-
Step 100
100
#D4EFFC
oklch(93.6% 0.033 228.3)
-
Step 200
200
#ACE2FA
oklch(88.4% 0.064 227)
-
Step 300
300 (this color)
#64D0FB
oklch(81% 0.116 227)
-
Step 400
400
#00B0E2
oklch(70.6% 0.137 227.2)
-
Step 500
500
#0097C2
oklch(63.1% 0.122 226.9)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#64D0FB 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) | #B9CCFD | 0.086 |
| Deuteranopia (no green cones) | #A4BCFA | 0.077 |
| Tritanopia (no blue cones) | #00DDDE | 0.073 |
| Achromatopsia (no color) | #C3C3C3 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64D0FB
#64D0FB
oklch(81% 0.116 227)
- #FFA97F
#FFA97F
oklch(81% 0.116 46.6)
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 #64D0FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.025
- Sky #82CAFC ΔE 0.029
- Light Sky Blue #87CEFA ΔE 0.030
- Vivid Sky Blue #4CC9F0 ΔE 0.030
- Sky Blue #87CEEB ΔE 0.034
- Bright Sky Blue #02CCFE ΔE 0.041
- Aqua Blue #02D8E9 ΔE 0.053
- Baby Blue #A2CFFE ΔE 0.059
Use #64D0FB 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.