#D3F3EF
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94% 0.034 187.4), rgb(211, 243, 239).
Aa
Black text reads best on this color (17.83:1).
About this color
#D3F3EF is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.034 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.025 away. Black text reads best on it, at 17.83:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 17.83:1 |
| White text | 1.17:1 |
Values
| HEX | #D3F3EF |
| RGB | rgb(211, 243, 239) |
| HSL | hsl(173, 57%, 89%) |
| OKLCH | oklch(94% 0.034 187.4) |
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 #D3F3EF | 1.17:1 | Fails | Lc -10.0 | Not readable |
| Black text on #D3F3EF | 17.83:1 | AAA | Lc 95.0 | Preferred for body text |
| #D3F3EF text on white | 1.17:1 | Fails | Lc 8.5 | Not readable |
| #D3F3EF text on black | 17.83:1 | AAA | Lc -95.7 | 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 100.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100 (this color)
#D3F3EF
oklch(94% 0.034 187.4)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6CAFA8
oklch(70.7% 0.069 187.3)
-
Step 500
500
#3D9B93
oklch(63.2% 0.089 187.4)
-
Step 600
600
#03857D
oklch(55.6% 0.096 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#015C56
oklch(42.8% 0.074 187.1)
-
Step 900
900
#124B47
oklch(37.6% 0.057 188.2)
-
Step 950
950
#0D2C2A
oklch(26.9% 0.037 189.4)
#D3F3EF 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) | #EFEFEF | 0.036 |
| Deuteranopia (no green cones) | #E9EAEF | 0.034 |
| Tritanopia (no blue cones) | #CBF5F2 | 0.010 |
| Achromatopsia (no color) | #ECECEC | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D3F3EF
#D3F3EF
oklch(94% 0.034 187.4)
- #FFE3E7
#FFE3E7
oklch(94% 0.031 7.9)
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 #D3F3EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.025
- Pale Blue #D0FEFE ΔE 0.029
- Pale Sky Blue #BDF6FE ΔE 0.029
- Light Light Blue #CAFFFB ΔE 0.030
- Ice #D6FFFA ΔE 0.031
- Eggshell Blue #C4FFF7 ΔE 0.032
- Really Light Blue #D4FFFF ΔE 0.032
- Very Pale Blue #D6FFFE ΔE 0.032
Use #D3F3EF 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.