#B9DEFE
Closest named color: Light Blue (#ADD8E6). oklch(88.5% 0.059 244.6), rgb(185, 222, 254).
Aa
Black text reads best on this color (14.94:1).
About this color
#B9DEFE is a light, muted blue. In OKLCH its lightness is 88%, its chroma 0.059 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.038 away. Black text reads best on it, at 14.94:1.
| Hue family | Blues |
| Lightness | light (88%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.94:1 |
| White text | 1.40:1 |
Values
| HEX | #B9DEFE |
| RGB | rgb(185, 222, 254) |
| HSL | hsl(208, 97%, 86%) |
| OKLCH | oklch(88.5% 0.059 244.6) |
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 #B9DEFE | 1.40:1 | Fails | Lc -22.3 | Dividers and decoration only |
| Black text on #B9DEFE | 14.94:1 | AAA | Lc 84.1 | Fine for body text |
| #B9DEFE text on white | 1.40:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #B9DEFE text on black | 14.94:1 | AAA | Lc -83.9 | Fine 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 200.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF8
oklch(93.6% 0.022 243.8)
-
Step 200
200 (this color)
#B9DEFE
oklch(88.5% 0.059 244.6)
-
Step 300
300
#97C7EF
oklch(81% 0.076 244.1)
-
Step 400
400
#58A8E7
oklch(70.7% 0.122 244.5)
-
Step 500
500
#0A90E0
oklch(63.1% 0.156 244.8)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#032943
oklch(27.1% 0.063 244.1)
#B9DEFE 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) | #D1DEFF | 0.030 |
| Deuteranopia (no green cones) | #C9D6FD | 0.027 |
| Tritanopia (no blue cones) | #A5E6E8 | 0.049 |
| Achromatopsia (no color) | #D9D9D9 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9DEFE
#B9DEFE
oklch(88.5% 0.059 244.6)
- #F5D2B1
#F5D2B1
oklch(88.5% 0.059 65.3)
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 #B9DEFE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.051
- Cadet Gray #CED4DA ΔE 0.052
- Celeste #A8DADC ΔE 0.053
- Diamond #B9F2FF ΔE 0.053
- Pale Turquoise #AFEEEE ΔE 0.055
- Robin's Egg Blue #98EFF9 ΔE 0.057
Use #B9DEFE 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.