#EFF7FB
Closest named color: Alice Blue (#F0F8FF). oklch(97.1% 0.01 228.9), rgb(239, 247, 251).
Aa
Black text reads best on this color (19.36:1).
About this color
#EFF7FB is a very light close to neutral grey. In OKLCH its lightness is 97%, its chroma 0.010. It has too little chroma to lean warm or cool. The nearest named color is Alice Blue (#F0F8FF), ΔE 0.006 away. Black text reads best on it, at 19.36:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.010) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.36:1 |
| White text | 1.08:1 |
Values
| HEX | #EFF7FB |
| RGB | rgb(239, 247, 251) |
| HSL | hsl(200, 60%, 96%) |
| OKLCH | oklch(97.1% 0.01 228.9) |
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 #EFF7FB | 1.08:1 | Fails | Lc 0.0 | Not readable |
| Black text on #EFF7FB | 19.36:1 | AAA | Lc 100.4 | Preferred for body text |
| #EFF7FB text on white | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #EFF7FB text on black | 19.36:1 | AAA | Lc -101.7 | 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)
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D4DADD
oklch(88.5% 0.008 228.9)
-
Step 300
300
#B8C2C7
oklch(80.8% 0.013 229)
-
Step 400
400
#94A3AB
oklch(70.6% 0.021 230.8)
-
Step 500
500
#7A8D96
oklch(63.1% 0.026 228)
-
Step 600
600
#627781
oklch(55.6% 0.029 228.3)
-
Step 700
700
#51646D
oklch(49.1% 0.027 228.2)
-
Step 800
800
#435259
oklch(42.8% 0.022 227.8)
-
Step 900
900
#384449
oklch(37.8% 0.018 225)
-
Step 950
950
#21282B
oklch(27.1% 0.011 225.5)
#EFF7FB 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) | #F5F7FB | 0.008 |
| Deuteranopia (no green cones) | #F3F5FB | 0.007 |
| Tritanopia (no blue cones) | #ECF8F8 | 0.007 |
| Achromatopsia (no color) | #F6F6F6 | 0.010 |
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 #EFF7FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.006
- White Smoke #F5F5F5 ΔE 0.010
- Cultured #F8F9FA ΔE 0.013
- Ghost White #F8F8FF ΔE 0.014
- Anti-Flash White #EDF2F4 ΔE 0.014
- Azure #F0FFFF ΔE 0.020
- Very Light Pink #FFF4F2 ΔE 0.022
- Snow #FFFAFA ΔE 0.023
Use #EFF7FB 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.