#27CFF3
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(79% 0.135 217.2), rgb(39, 207, 243).
Aa
Black text reads best on this color (11.30:1).
About this color
#27CFF3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.135 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.020 away. Black text reads best on it, at 11.30:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.30:1 |
| White text | 1.85:1 |
Values
| HEX | #27CFF3 |
| RGB | rgb(39, 207, 243) |
| HSL | hsl(191, 89%, 55%) |
| OKLCH | oklch(79% 0.135 217.2) |
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 #27CFF3 | 1.85:1 | Fails | Lc -38.6 | Non-text elements, placeholder text |
| Black text on #27CFF3 | 11.30:1 | AAA | Lc 69.4 | Content text, not long reading |
| #27CFF3 text on white | 1.85:1 | Fails | Lc 34.5 | Non-text elements, placeholder text |
| #27CFF3 text on black | 11.30:1 | AAA | Lc -68.1 | 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
#E9F9FD
oklch(97.1% 0.018 214.4)
-
Step 100
100
#CEF1FB
oklch(93.6% 0.039 216.9)
-
Step 200
200
#A0E6FA
oklch(88.5% 0.075 217.6)
-
Step 300
300 (this color)
#27CFF3
oklch(79% 0.135 217.2)
-
Step 400
400
#00B3D4
oklch(70.7% 0.127 217.3)
-
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)
#27CFF3 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) | #B7C9F5 | 0.116 |
| Deuteranopia (no green cones) | #9EB6F3 | 0.105 |
| Tritanopia (no blue cones) | #00DBDA | 0.057 |
| Achromatopsia (no color) | #BEBEBE | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27CFF3
#27CFF3
oklch(79% 0.135 217.2)
- #FF9D80
#FF9D80
oklch(79% 0.125 37.3)
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 #27CFF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.020
- Bright Sky Blue #02CCFE ΔE 0.021
- Aqua Blue #02D8E9 ΔE 0.033
- Dark Turquoise #00CED1 ΔE 0.051
- Lightblue #7BC8F6 ΔE 0.052
- Deep Sky Blue #00BFFF ΔE 0.054
- Medium Turquoise #48D1CC ΔE 0.059
- Sky Blue #87CEEB ΔE 0.061
Use #27CFF3 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.