#64EEFF
Closest named color: Robin's Egg (#6DEDFD). oklch(88% 0.121 206.4), rgb(100, 238, 255).
Aa
Black text reads best on this color (15.21:1).
About this color
#64EEFF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.121 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg (#6DEDFD), ΔE 0.006 away. Black text reads best on it, at 15.21:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Robin's Egg (#6DEDFD) |
| Black text | 15.21:1 |
| White text | 1.38:1 |
Values
| HEX | #64EEFF |
| RGB | rgb(100, 238, 255) |
| HSL | hsl(187, 100%, 70%) |
| OKLCH | oklch(88% 0.121 206.4) |
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 #64EEFF | 1.38:1 | Fails | Lc -20.8 | Dividers and decoration only |
| Black text on #64EEFF | 15.21:1 | AAA | Lc 85.5 | Fine for body text |
| #64EEFF text on white | 1.38:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #64EEFF text on black | 15.21:1 | AAA | Lc -85.3 | 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 200.
-
Step 50
50
#E6FAFC
oklch(97.1% 0.021 204)
-
Step 100
100
#C8F3F9
oklch(93.6% 0.045 206.8)
-
Step 200
200 (this color)
#64EEFF
oklch(88% 0.121 206.4)
-
Step 300
300
#00D9ED
oklch(80.9% 0.139 206.6)
-
Step 400
400
#00B5C6
oklch(70.6% 0.121 206.7)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#64EEFF 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) | #DCE5FF | 0.118 |
| Deuteranopia (no green cones) | #C4D4FF | 0.108 |
| Tritanopia (no blue cones) | #00F7F3 | 0.045 |
| Achromatopsia (no color) | #DBDBDB | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64EEFF
#64EEFF
oklch(88% 0.121 206.4)
- #FFC8C1
#FFC8C1
oklch(88% 0.064 26.8)
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 #64EEFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg #6DEDFD ΔE 0.006
- Robin Egg Blue #8AF1FE ΔE 0.031
- Bright Light Blue #26F7FD ΔE 0.033
- Robin's Egg Blue #98EFF9 ΔE 0.041
- Bright Cyan #41FDFE ΔE 0.042
- Cyan #00FFFF ΔE 0.051
- Bright Turquoise #0FFEF9 ΔE 0.052
- Bright Aqua #0BF9EA ΔE 0.057
Use #64EEFF 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.