#EFF5FF
Closest named color: Alice Blue (#F0F8FF). oklch(96.9% 0.015 260.7), rgb(239, 245, 255).
Aa
Black text reads best on this color (19.17:1).
About this color
#EFF5FF is a very light close to neutral grey. In OKLCH its lightness is 97%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Alice Blue (#F0F8FF), ΔE 0.008 away. Black text reads best on it, at 19.17:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.17:1 |
| White text | 1.09:1 |
Values
| HEX | #EFF5FF |
| RGB | rgb(239, 245, 255) |
| HSL | hsl(218, 100%, 97%) |
| OKLCH | oklch(96.9% 0.015 260.7) |
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 #EFF5FF | 1.09:1 | Fails | Lc 0.0 | Not readable |
| Black text on #EFF5FF | 19.17:1 | AAA | Lc 99.8 | Preferred for body text |
| #EFF5FF text on white | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #EFF5FF text on black | 19.17:1 | AAA | Lc -101.0 | 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)
#EFF5FF
oklch(96.9% 0.015 260.7)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E0
oklch(88.4% 0.011 261.8)
-
Step 300
300
#BAC1CD
oklch(80.9% 0.019 261.3)
-
Step 400
400
#96A1B4
oklch(70.6% 0.03 261.4)
-
Step 500
500
#7C8AA2
oklch(63.1% 0.04 261.2)
-
Step 600
600
#65748D
oklch(55.6% 0.043 260.6)
-
Step 700
700
#546178
oklch(49.1% 0.04 261.8)
-
Step 800
800
#454F61
oklch(42.6% 0.033 262.1)
-
Step 900
900
#3A424F
oklch(37.7% 0.025 260.1)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#EFF5FF 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) | #F2F5FF | 0.004 |
| Deuteranopia (no green cones) | #F0F4FF | 0.003 |
| Tritanopia (no blue cones) | #ECF7F8 | 0.013 |
| Achromatopsia (no color) | #F4F4F4 | 0.015 |
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 #EFF5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.008
- Ghost White #F8F8FF ΔE 0.015
- White Smoke #F5F5F5 ΔE 0.015
- Anti-Flash White #EDF2F4 ΔE 0.015
- Cultured #F8F9FA ΔE 0.019
- Lavender Blush #FFF0F5 ΔE 0.024
- Very Light Pink #FFF4F2 ΔE 0.025
- Azure #F0FFFF ΔE 0.026
Use #EFF5FF 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.