#ECF6FF
Closest named color: Alice Blue (#F0F8FF). oklch(96.8% 0.016 245.1), rgb(236, 246, 255).
Aa
Black text reads best on this color (19.19:1).
About this color
#ECF6FF is a very light close to neutral grey. In OKLCH its lightness is 97%, its chroma 0.016. 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 19.19:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.19:1 |
| White text | 1.09:1 |
Values
| HEX | #ECF6FF |
| RGB | rgb(236, 246, 255) |
| HSL | hsl(208, 100%, 96%) |
| OKLCH | oklch(96.8% 0.016 245.1) |
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 #ECF6FF | 1.09:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECF6FF | 19.19:1 | AAA | Lc 99.8 | Preferred for body text |
| #ECF6FF text on white | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #ECF6FF text on black | 19.19:1 | 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)
#ECF6FF
oklch(96.8% 0.016 245.1)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C2CD
oklch(80.8% 0.02 245.7)
-
Step 400
400
#90A3B4
oklch(70.6% 0.033 245.3)
-
Step 500
500
#758DA2
oklch(63.2% 0.042 244.9)
-
Step 600
600
#5D778D
oklch(55.7% 0.046 244.3)
-
Step 700
700
#4C6478
oklch(49.2% 0.043 244)
-
Step 800
800
#3F5161
oklch(42.6% 0.035 245.6)
-
Step 900
900
#354350
oklch(37.6% 0.029 246.7)
-
Step 950
950
#1F272F
oklch(26.9% 0.019 248.5)
#ECF6FF 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) | #F3F6FF | 0.009 |
| Deuteranopia (no green cones) | #F0F4FF | 0.007 |
| Tritanopia (no blue cones) | #E8F8F9 | 0.012 |
| Achromatopsia (no color) | #F5F5F5 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECF6FF
#ECF6FF
oklch(96.8% 0.016 245.1)
- #FDF3EA
#FDF3EA
oklch(97% 0.016 64.7)
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 #ECF6FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.008
- Anti-Flash White #EDF2F4 ΔE 0.015
- White Smoke #F5F5F5 ΔE 0.016
- Ghost White #F8F8FF ΔE 0.017
- Cultured #F8F9FA ΔE 0.020
- Azure #F0FFFF ΔE 0.024
- Light Cyan #E0FFFF ΔE 0.026
- Lavender Blush #FFF0F5 ΔE 0.027
Use #ECF6FF 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.