#ECFFF3
Closest named color: Honeydew (#F0FFF0). oklch(98.3% 0.025 158.2), rgb(236, 255, 243).
Aa
Black text reads best on this color (20.16:1).
About this color
#ECFFF3 is a very light close to neutral grey. In OKLCH its lightness is 98%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Honeydew (#F0FFF0), ΔE 0.006 away. Black text reads best on it, at 20.16:1.
| Hue family | Neutrals |
| Lightness | very light (98%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Honeydew (#F0FFF0) |
| Black text | 20.16:1 |
| White text | 1.04:1 |
Values
| HEX | #ECFFF3 |
| RGB | rgb(236, 255, 243) |
| HSL | hsl(142, 100%, 96%) |
| OKLCH | oklch(98.3% 0.025 158.2) |
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 #ECFFF3 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECFFF3 | 20.16:1 | AAA | Lc 103.2 | Preferred for body text |
| #ECFFF3 text on white | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #ECFFF3 text on black | 20.16:1 | AAA | Lc -104.8 | 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)
#ECFFF3
oklch(98.3% 0.025 158.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D0DDD5
oklch(88.5% 0.018 159.1)
-
Step 300
300
#B0C7B9
oklch(80.8% 0.032 158.9)
-
Step 400
400
#86AB94
oklch(70.7% 0.052 157.5)
-
Step 500
500
#66967A
oklch(63.1% 0.067 158.2)
-
Step 600
600
#4D8063
oklch(55.5% 0.072 158.1)
-
Step 700
700
#3D6C52
oklch(49% 0.067 158.4)
-
Step 800
800
#335843
oklch(42.6% 0.055 158.1)
-
Step 900
900
#2D4939
oklch(37.8% 0.044 158.4)
-
Step 950
950
#1B2B21
oklch(27.1% 0.028 156.5)
#ECFFF3 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) | #FFFCF2 | 0.025 |
| Deuteranopia (no green cones) | #FBF9F4 | 0.024 |
| Tritanopia (no blue cones) | #E9FFFB | 0.011 |
| Achromatopsia (no color) | #FAFAFA | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECFFF3
#ECFFF3
oklch(98.3% 0.025 158.2)
- #FFF7FC
#FFF7FC
oklch(98.4% 0.011 339.3)
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 #ECFFF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Honeydew #F0FFF0 ΔE 0.006
- Mint Cream #F5FFFA ΔE 0.016
- Azure #F0FFFF ΔE 0.017
- Light Cyan #E0FFFF ΔE 0.021
- Ivory #FFFFF0 ΔE 0.024
- Cultured #F8F9FA ΔE 0.025
- Floral White #FFFAF0 ΔE 0.026
- Ice #D6FFFA ΔE 0.027
Use #ECFFF3 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.