#A9EFFF
Closest named color: Diamond (#B9F2FF). oklch(91.1% 0.073 213.5), rgb(169, 239, 255).
Aa
Black text reads best on this color (16.47:1).
About this color
#A9EFFF is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 91%, its chroma 0.073 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.020 away. Black text reads best on it, at 16.47:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.47:1 |
| White text | 1.27:1 |
Values
| HEX | #A9EFFF |
| RGB | rgb(169, 239, 255) |
| HSL | hsl(191, 100%, 83%) |
| OKLCH | oklch(91.1% 0.073 213.5) |
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 #A9EFFF | 1.27:1 | Fails | Lc -15.6 | Dividers and decoration only |
| Black text on #A9EFFF | 16.47:1 | AAA | Lc 90.1 | Preferred for body text |
| #A9EFFF text on white | 1.27:1 | Fails | Lc 13.5 | Not readable |
| #A9EFFF text on black | 16.47:1 | AAA | Lc -90.3 | 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
#EDF8FB
oklch(97.2% 0.012 215.8)
-
Step 100
100 (this color)
#A9EFFF
oklch(91.1% 0.073 213.5)
-
Step 200
200
#B3E3EE
oklch(88.6% 0.052 213.3)
-
Step 300
300
#73D1E5
oklch(81% 0.093 213.1)
-
Step 400
400
#00B4CF
oklch(70.8% 0.124 213.4)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008296
oklch(55.7% 0.098 213.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#A9EFFF 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) | #E2EAFF | 0.066 |
| Deuteranopia (no green cones) | #D4DFFF | 0.062 |
| Tritanopia (no blue cones) | #8AF6F4 | 0.040 |
| Achromatopsia (no color) | #E4E4E4 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9EFFF
#A9EFFF
oklch(91.1% 0.073 213.5)
- #FFD7CE
#FFD7CE
oklch(91.1% 0.047 32.8)
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 #A9EFFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.020
- Robin's Egg Blue #98EFF9 ΔE 0.020
- Pale Turquoise #AFEEEE ΔE 0.023
- Robin Egg Blue #8AF1FE ΔE 0.029
- Pale Sky Blue #BDF6FE ΔE 0.030
- Powder Blue #B0E0E6 ΔE 0.043
- Pale Cyan #B7FFFA ΔE 0.049
- Duck Egg Blue #C3FBF4 ΔE 0.050
Use #A9EFFF 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.