#ECF9FD
Closest named color: Alice Blue (#F0F8FF). oklch(97.4% 0.015 218), rgb(236, 249, 253).
Aa
Black text reads best on this color (19.53:1).
About this color
#ECF9FD 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 0.007 away. Black text reads best on it, at 19.53:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.53:1 |
| White text | 1.07:1 |
Values
| HEX | #ECF9FD |
| RGB | rgb(236, 249, 253) |
| HSL | hsl(194, 81%, 96%) |
| OKLCH | oklch(97.4% 0.015 218) |
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 #ECF9FD | 1.07:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECF9FD | 19.53:1 | AAA | Lc 101.0 | Preferred for body text |
| #ECF9FD text on white | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #ECF9FD text on black | 19.53:1 | AAA | Lc -102.3 | 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)
#ECF9FD
oklch(97.4% 0.015 218)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4C9
oklch(81% 0.019 218.4)
-
Step 400
400
#8CA6AD
oklch(70.8% 0.031 215.8)
-
Step 500
500
#6F9099
oklch(63.2% 0.039 216.3)
-
Step 600
600
#577A84
oklch(55.7% 0.042 217.4)
-
Step 700
700
#476670
oklch(49% 0.039 219.9)
-
Step 800
800
#3B545B
oklch(42.8% 0.032 217)
-
Step 900
900
#32454B
oklch(37.7% 0.026 219.2)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#ECF9FD 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) | #F6F8FD | 0.013 |
| Deuteranopia (no green cones) | #F3F6FD | 0.011 |
| Tritanopia (no blue cones) | #E8FBFA | 0.009 |
| Achromatopsia (no color) | #F7F7F7 | 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 #ECF9FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.007
- White Smoke #F5F5F5 ΔE 0.015
- Cultured #F8F9FA ΔE 0.016
- Ghost White #F8F8FF ΔE 0.016
- Azure #F0FFFF ΔE 0.016
- Anti-Flash White #EDF2F4 ΔE 0.018
- Light Cyan #E0FFFF ΔE 0.020
- Mint Cream #F5FFFA ΔE 0.021
Use #ECF9FD 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.