#B9EFFB
Closest named color: Diamond (#B9F2FF). oklch(91.9% 0.057 212.8), rgb(185, 239, 251).
Aa
Black text reads best on this color (16.80:1).
About this color
#B9EFFB is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.057 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.008 away. Black text reads best on it, at 16.80:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.80:1 |
| White text | 1.24:1 |
Values
| HEX | #B9EFFB |
| RGB | rgb(185, 239, 251) |
| HSL | hsl(191, 89%, 85%) |
| OKLCH | oklch(91.9% 0.057 212.8) |
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 #B9EFFB | 1.24:1 | Fails | Lc -14.3 | Not readable |
| Black text on #B9EFFB | 16.80:1 | AAA | Lc 91.2 | Preferred for body text |
| #B9EFFB text on white | 1.24:1 | Fails | Lc 12.3 | Not readable |
| #B9EFFB text on black | 16.80:1 | AAA | Lc -91.6 | 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
#EEF7F9
oklch(97% 0.01 212.5)
-
Step 100
100 (this color)
#B9EFFB
oklch(91.9% 0.057 212.8)
-
Step 200
200
#BBE1E9
oklch(88.5% 0.041 211.9)
-
Step 300
300
#87CEDD
oklch(81% 0.074 212.4)
-
Step 400
400
#22B3CC
oklch(70.7% 0.118 213)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#B9EFFB 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) | #E5EBFC | 0.053 |
| Deuteranopia (no green cones) | #DAE2FB | 0.049 |
| Tritanopia (no blue cones) | #A4F4F3 | 0.030 |
| Achromatopsia (no color) | #E6E6E6 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9EFFB
#B9EFFB
oklch(91.9% 0.057 212.8)
- #FFDBD3
#FFDBD3
oklch(91.9% 0.042 32.6)
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 #B9EFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.008
- Pale Sky Blue #BDF6FE ΔE 0.019
- Pale Turquoise #AFEEEE ΔE 0.022
- Robin's Egg Blue #98EFF9 ΔE 0.035
- Duck Egg Blue #C3FBF4 ΔE 0.039
- Pale Cyan #B7FFFA ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.045
- Robin Egg Blue #8AF1FE ΔE 0.045
Use #B9EFFB 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.