#ECFBFF
Closest named color: Alice Blue (#F0F8FF). oklch(97.8% 0.017 215.5), rgb(236, 251, 255).
Aa
Black text reads best on this color (19.80:1).
About this color
#ECFBFF is a very light close to neutral grey. In OKLCH its lightness is 98%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Alice Blue (#F0F8FF), ΔE 0.009 away. Black text reads best on it, at 19.80:1.
| Hue family | Neutrals |
| Lightness | very light (98%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.80:1 |
| White text | 1.06:1 |
Values
| HEX | #ECFBFF |
| RGB | rgb(236, 251, 255) |
| HSL | hsl(193, 100%, 96%) |
| OKLCH | oklch(97.8% 0.017 215.5) |
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 #ECFBFF | 1.06:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECFBFF | 19.80:1 | AAA | Lc 102.0 | Preferred for body text |
| #ECFBFF text on white | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #ECFBFF text on black | 19.80:1 | AAA | Lc -103.4 | 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)
#ECFBFF
oklch(97.8% 0.017 215.5)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDE
oklch(88.5% 0.012 217.6)
-
Step 300
300
#B2C4C9
oklch(80.8% 0.021 216.2)
-
Step 400
400
#89A6AE
oklch(70.6% 0.034 216.3)
-
Step 500
500
#6B919A
oklch(63.2% 0.044 213.9)
-
Step 600
600
#527B85
oklch(55.6% 0.048 214.7)
-
Step 700
700
#436771
oklch(49% 0.044 217.1)
-
Step 800
800
#37545C
oklch(42.6% 0.037 216.9)
-
Step 900
900
#30464B
oklch(37.8% 0.029 213.3)
-
Step 950
950
#1C292C
oklch(27% 0.019 213.5)
#ECFBFF 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) | #F8FAFF | 0.015 |
| Deuteranopia (no green cones) | #F5F7FF | 0.015 |
| Tritanopia (no blue cones) | #E7FDFC | 0.010 |
| Achromatopsia (no color) | #F8F8F8 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECFBFF
#ECFBFF
oklch(97.8% 0.017 215.5)
- #FFF5F3
#FFF5F3
oklch(97.7% 0.011 31.1)
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 #ECFBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.009
- Azure #F0FFFF ΔE 0.012
- Cultured #F8F9FA ΔE 0.016
- Ghost White #F8F8FF ΔE 0.016
- Light Cyan #E0FFFF ΔE 0.017
- Mint Cream #F5FFFA ΔE 0.018
- White Smoke #F5F5F5 ΔE 0.019
- Anti-Flash White #EDF2F4 ΔE 0.023
Use #ECFBFF 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.