#E3F9F5
Closest named color: Light Cyan (#E0FFFF). oklch(96.5% 0.024 183.8), rgb(227, 249, 245).
Aa
Black text reads best on this color (19.13:1).
About this color
#E3F9F5 is a very light close to neutral grey. In OKLCH its lightness is 96%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Light Cyan (#E0FFFF), ΔE 0.017 away. Black text reads best on it, at 19.13:1.
| Hue family | Neutrals |
| Lightness | very light (96%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Light Cyan (#E0FFFF) |
| Black text | 19.13:1 |
| White text | 1.09:1 |
Values
| HEX | #E3F9F5 |
| RGB | rgb(227, 249, 245) |
| HSL | hsl(169, 65%, 93%) |
| OKLCH | oklch(96.5% 0.024 183.8) |
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 #E3F9F5 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| Black text on #E3F9F5 | 19.13:1 | AAA | Lc 99.6 | Preferred for body text |
| #E3F9F5 text on white | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #E3F9F5 text on black | 19.13:1 | AAA | Lc -100.8 | 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)
#E3F9F5
oklch(96.5% 0.024 183.8)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ACC7C3
oklch(80.8% 0.03 185.8)
-
Step 400
400
#7FABA4
oklch(70.7% 0.048 184.1)
-
Step 500
500
#5D968D
oklch(63.1% 0.062 183.2)
-
Step 600
600
#418077
oklch(55.5% 0.067 183.5)
-
Step 700
700
#326C64
oklch(49% 0.062 183.6)
-
Step 800
800
#2A5852
oklch(42.6% 0.052 184.4)
-
Step 900
900
#274944
oklch(37.8% 0.041 183.6)
-
Step 950
950
#182B28
oklch(27.2% 0.026 183.3)
#E3F9F5 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) | #F7F6F5 | 0.026 |
| Deuteranopia (no green cones) | #F2F3F5 | 0.023 |
| Tritanopia (no blue cones) | #DEFAF8 | 0.007 |
| Achromatopsia (no color) | #F4F4F4 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3F9F5
#E3F9F5
oklch(96.5% 0.024 183.8)
- #FFEFF2
#FFEFF2
oklch(96.6% 0.018 4.5)
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 #E3F9F5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cyan #E0FFFF ΔE 0.017
- Ice Blue #D7FFFE ΔE 0.020
- Ice #D6FFFA ΔE 0.020
- Very Pale Blue #D6FFFE ΔE 0.020
- Anti-Flash White #EDF2F4 ΔE 0.021
- Very Light Blue #D5FFFF ΔE 0.021
- Really Light Blue #D4FFFF ΔE 0.022
- Alice Blue #F0F8FF ΔE 0.023
Use #E3F9F5 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.