#4EFEFF
Closest named color: Bright Cyan (#41FDFE). oklch(91.1% 0.139 195.6), rgb(78, 254, 255).
Aa
Black text reads best on this color (16.94:1).
About this color
#4EFEFF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.139 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Cyan (#41FDFE), ΔE 0.007 away. Black text reads best on it, at 16.94:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Bright Cyan (#41FDFE) |
| Black text | 16.94:1 |
| White text | 1.23:1 |
Values
| HEX | #4EFEFF |
| RGB | rgb(78, 254, 255) |
| HSL | hsl(180, 100%, 65%) |
| OKLCH | oklch(91.1% 0.139 195.6) |
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 #4EFEFF | 1.23:1 | Fails | Lc -13.3 | Not readable |
| Black text on #4EFEFF | 16.94:1 | AAA | Lc 92.2 | Preferred for body text |
| #4EFEFF text on white | 1.23:1 | Fails | Lc 11.4 | Not readable |
| #4EFEFF text on black | 16.94:1 | AAA | Lc -92.6 | Preferred 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 100.
-
Step 50
50
#E4FBFA
oklch(97.1% 0.024 193.6)
-
Step 100
100 (this color)
#4EFEFF
oklch(91.1% 0.139 195.6)
-
Step 200
200
#83EEEE
oklch(88.5% 0.099 195.5)
-
Step 300
300
#00DCDD
oklch(81% 0.138 195.4)
-
Step 400
400
#00B7B8
oklch(70.6% 0.12 195.5)
-
Step 500
500
#009D9E
oklch(63.1% 0.108 195.6)
-
Step 600
600
#008485
oklch(55.6% 0.095 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5C
oklch(42.7% 0.073 196.1)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#4EFEFF 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) | #EDF2FF | 0.144 |
| Deuteranopia (no green cones) | #D3DFFF | 0.133 |
| Tritanopia (no blue cones) | #00FFFE | 0.017 |
| Achromatopsia (no color) | #E7E7E7 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EFEFF
#4EFEFF
oklch(91.1% 0.139 195.6)
- #FFD6D7
#FFD6D7
oklch(91.1% 0.046 16.4)
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 #4EFEFF, closest first.
No curated palette has a color within ΔE 0.04 of #4EFEFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Cyan #41FDFE ΔE 0.007
- Cyan #00FFFF ΔE 0.017
- Bright Turquoise #0FFEF9 ΔE 0.020
- Bright Light Blue #26F7FD ΔE 0.025
- Bright Aqua #0BF9EA ΔE 0.037
- Robin's Egg #6DEDFD ΔE 0.046
- Robin Egg Blue #8AF1FE ΔE 0.048
- Robin's Egg Blue #98EFF9 ΔE 0.058
Use #4EFEFF 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.