#B5ECFF
Closest named color: Diamond (#B9F2FF). oklch(91.2% 0.062 221.1), rgb(181, 236, 255).
Aa
Black text reads best on this color (16.40:1).
About this color
#B5ECFF is a very light, muted teal or cyan. In OKLCH its lightness is 91%, its chroma 0.062 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.017 away. Black text reads best on it, at 16.40:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.40:1 |
| White text | 1.27:1 |
Values
| HEX | #B5ECFF |
| RGB | rgb(181, 236, 255) |
| HSL | hsl(195, 100%, 85%) |
| OKLCH | oklch(91.2% 0.062 221.1) |
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 #B5ECFF | 1.27:1 | Fails | Lc -16.0 | Dividers and decoration only |
| Black text on #B5ECFF | 16.40:1 | AAA | Lc 89.8 | Fine for body text |
| #B5ECFF text on white | 1.27:1 | Fails | Lc 13.8 | Not readable |
| #B5ECFF text on black | 16.40:1 | AAA | Lc -90.0 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100 (this color)
#B5ECFF
oklch(91.2% 0.062 221.1)
-
Step 200
200
#BAE0EE
oklch(88.4% 0.044 222.2)
-
Step 300
300
#85CDE5
oklch(80.9% 0.079 221.1)
-
Step 400
400
#15B2D8
oklch(70.8% 0.127 220.9)
-
Step 500
500
#0099BB
oklch(63.2% 0.116 221)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#B5ECFF 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) | #E0E9FF | 0.051 |
| Deuteranopia (no green cones) | #D5DFFF | 0.048 |
| Tritanopia (no blue cones) | #9DF3F2 | 0.039 |
| Achromatopsia (no color) | #E3E3E3 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5ECFF
#B5ECFF
oklch(91.2% 0.062 221.1)
- #FFD8CA
#FFD8CA
oklch(91.1% 0.048 40.7)
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 #B5ECFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.017
- Pale Turquoise #AFEEEE ΔE 0.027
- Pale Sky Blue #BDF6FE ΔE 0.030
- Robin's Egg Blue #98EFF9 ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.041
- Robin Egg Blue #8AF1FE ΔE 0.043
- Duck Egg Blue #C3FBF4 ΔE 0.051
- Pale Cyan #B7FFFA ΔE 0.054
Use #B5ECFF 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.