#4FF5FF
Closest named color: Bright Light Blue (#26F7FD). oklch(89.1% 0.134 201), rgb(79, 245, 255).
Aa
Black text reads best on this color (15.83:1).
About this color
#4FF5FF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.134 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Light Blue (#26F7FD), ΔE 0.015 away. Black text reads best on it, at 15.83:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Bright Light Blue (#26F7FD) |
| Black text | 15.83:1 |
| White text | 1.32:1 |
Values
| HEX | #4FF5FF |
| RGB | rgb(79, 245, 255) |
| HSL | hsl(183, 100%, 65%) |
| OKLCH | oklch(89.1% 0.134 201) |
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 #4FF5FF | 1.32:1 | Fails | Lc -18.0 | Dividers and decoration only |
| Black text on #4FF5FF | 15.83:1 | AAA | Lc 88.0 | Fine for body text |
| #4FF5FF text on white | 1.32:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #4FF5FF text on black | 15.83:1 | AAA | Lc -88.0 | 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
#C4F4F7
oklch(93.5% 0.049 201.1)
-
Step 200
200 (this color)
#4FF5FF
oklch(89.1% 0.134 201)
-
Step 300
300
#00DAE5
oklch(80.8% 0.137 201.3)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#4FF5FF 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) | #E3EAFF | 0.135 |
| Deuteranopia (no green cones) | #C9D8FF | 0.124 |
| Tritanopia (no blue cones) | #00FEF8 | 0.033 |
| Achromatopsia (no color) | #E0E0E0 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FF5FF
#4FF5FF
oklch(89.1% 0.134 201)
- #FFCDCB
#FFCDCB
oklch(89.1% 0.057 21)
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 #4FF5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Light Blue #26F7FD ΔE 0.015
- Bright Cyan #41FDFE ΔE 0.022
- Robin's Egg #6DEDFD ΔE 0.025
- Cyan #00FFFF ΔE 0.030
- Bright Turquoise #0FFEF9 ΔE 0.032
- Robin Egg Blue #8AF1FE ΔE 0.039
- Bright Aqua #0BF9EA ΔE 0.041
- Robin's Egg Blue #98EFF9 ΔE 0.050
Use #4FF5FF 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.