#F3FDFF
Closest named color: Azure (#F0FFFF). oklch(98.7% 0.011 211), rgb(243, 253, 255).
Aa
Black text reads best on this color (20.30:1).
About this color
#F3FDFF is a very light close to neutral grey. In OKLCH its lightness is 99%, its chroma 0.011. It has too little chroma to lean warm or cool. The nearest named color is Azure (#F0FFFF), ΔE 0.006 away. Black text reads best on it, at 20.30:1.
| Hue family | Neutrals |
| Lightness | very light (99%) |
| Chroma | close to neutral grey (0.011) |
| Temperature | neutral |
| Nearest name | Azure (#F0FFFF) |
| Black text | 20.30:1 |
| White text | 1.03:1 |
Values
| HEX | #F3FDFF |
| RGB | rgb(243, 253, 255) |
| HSL | hsl(190, 100%, 98%) |
| OKLCH | oklch(98.7% 0.011 211) |
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 #F3FDFF | 1.03:1 | Fails | Lc 0.0 | Not readable |
| Black text on #F3FDFF | 20.30:1 | AAA | Lc 103.7 | Preferred for body text |
| #F3FDFF text on white | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #F3FDFF text on black | 20.30:1 | AAA | Lc -105.3 | 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 50.
-
Step 50
50 (this color)
#F3FDFF
oklch(98.7% 0.011 211)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D4DBDC
oklch(88.6% 0.008 207.1)
-
Step 300
300
#B7C3C6
oklch(80.9% 0.014 214.4)
-
Step 400
400
#91A5A8
oklch(70.7% 0.023 207.6)
-
Step 500
500
#768E93
oklch(63% 0.028 211.7)
-
Step 600
600
#5F797E
oklch(55.7% 0.031 210.6)
-
Step 700
700
#4E656A
oklch(49% 0.029 212.4)
-
Step 800
800
#405356
oklch(42.7% 0.024 208.2)
-
Step 900
900
#364447
oklch(37.6% 0.019 212.1)
-
Step 950
950
#20282A
oklch(27% 0.012 214.5)
#F3FDFF 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) | #FBFCFF | 0.010 |
| Deuteranopia (no green cones) | #F9FAFF | 0.010 |
| Tritanopia (no blue cones) | #F0FEFE | 0.005 |
| Achromatopsia (no color) | #FBFBFB | 0.011 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #F3FDFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azure #F0FFFF ΔE 0.006
- Mint Cream #F5FFFA ΔE 0.010
- Cultured #F8F9FA ΔE 0.011
- Pale Grey #FDFDFE ΔE 0.013
- Ghost White #F8F8FF ΔE 0.014
- Alice Blue #F0F8FF ΔE 0.014
- Snow #FFFAFA ΔE 0.016
- White #FFFFFF ΔE 0.017
Use #F3FDFF 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.