#4FF0FF
Closest named color: Robin's Egg (#6DEDFD). oklch(87.9% 0.131 204.1), rgb(79, 240, 255).
Aa
Black text reads best on this color (15.24:1).
About this color
#4FF0FF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.131 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg (#6DEDFD), ΔE 0.017 away. Black text reads best on it, at 15.24:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Robin's Egg (#6DEDFD) |
| Black text | 15.24:1 |
| White text | 1.37:1 |
Values
| HEX | #4FF0FF |
| RGB | rgb(79, 240, 255) |
| HSL | hsl(185, 100%, 65%) |
| OKLCH | oklch(87.9% 0.131 204.1) |
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 #4FF0FF | 1.37:1 | Fails | Lc -20.6 | Dividers and decoration only |
| Black text on #4FF0FF | 15.24:1 | AAA | Lc 85.6 | Fine for body text |
| #4FF0FF text on white | 1.37:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #4FF0FF text on black | 15.24:1 | AAA | Lc -85.5 | 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
#E5FAFC
oklch(97% 0.022 203.7)
-
Step 100
100
#C5F4F9
oklch(93.6% 0.048 204.4)
-
Step 200
200 (this color)
#4FF0FF
oklch(87.9% 0.131 204.1)
-
Step 300
300
#00DAE9
oklch(81% 0.138 203.6)
-
Step 400
400
#00B6C3
oklch(70.8% 0.121 203.9)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#4FF0FF 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) | #DDE6FF | 0.130 |
| Deuteranopia (no green cones) | #C4D4FF | 0.119 |
| Tritanopia (no blue cones) | #00FAF4 | 0.039 |
| Achromatopsia (no color) | #DBDBDB | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FF0FF
#4FF0FF
oklch(87.9% 0.131 204.1)
- #FFC7C3
#FFC7C3
oklch(87.8% 0.064 23.2)
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 #4FF0FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg #6DEDFD ΔE 0.017
- Bright Light Blue #26F7FD ΔE 0.023
- Bright Cyan #41FDFE ΔE 0.036
- Robin Egg Blue #8AF1FE ΔE 0.040
- Cyan #00FFFF ΔE 0.042
- Bright Turquoise #0FFEF9 ΔE 0.043
- Bright Aqua #0BF9EA ΔE 0.048
- Robin's Egg Blue #98EFF9 ΔE 0.051
Use #4FF0FF 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.