#B1ADDE
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.8% 0.07 288.4), rgb(177, 173, 222).
Aa
Black text reads best on this color (9.90:1).
About this color
#B1ADDE is a medium-light, muted purple. In OKLCH its lightness is 77%, its chroma 0.070 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.052 away. Black text reads best on it, at 9.90:1.
| Hue family | Purples |
| Lightness | medium-light (77%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.90:1 |
| White text | 2.12:1 |
Values
| HEX | #B1ADDE |
| RGB | rgb(177, 173, 222) |
| HSL | hsl(245, 43%, 77%) |
| OKLCH | oklch(76.8% 0.07 288.4) |
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 #B1ADDE | 2.12:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #B1ADDE | 9.90:1 | AAA | Lc 62.4 | Content text, not long reading |
| #B1ADDE text on white | 2.12:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #B1ADDE text on black | 9.90:1 | AAA | Lc -60.7 | Content text, not long reading |
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 300.
-
Step 50
50
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D7D6F2
oklch(88.6% 0.038 287.2)
-
Step 300
300 (this color)
#B1ADDE
oklch(76.8% 0.07 288.4)
-
Step 400
400
#9E95E2
oklch(70.8% 0.111 288.6)
-
Step 500
500
#8779DA
oklch(63.2% 0.143 288.2)
-
Step 600
600
#7260C7
oklch(55.7% 0.154 288.4)
-
Step 700
700
#604EAC
oklch(49.1% 0.144 288.7)
-
Step 800
800
#4E418B
oklch(42.7% 0.118 288.4)
-
Step 900
900
#40386F
oklch(37.7% 0.092 287.9)
-
Step 950
950
#262141
oklch(27.1% 0.058 289.1)
#B1ADDE 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) | #A1B3E0 | 0.025 |
| Deuteranopia (no green cones) | #A1B1DD | 0.023 |
| Tritanopia (no blue cones) | #A8B5BE | 0.059 |
| Achromatopsia (no color) | #B2B2B2 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1ADDE
#B1ADDE
oklch(76.8% 0.07 288.4)
- #B7B884
#B7B884
oklch(76.9% 0.07 108.9)
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 #B1ADDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.052
- Pastel Blue #A2BFFE ΔE 0.057
- Cloudy Blue #ACC2D9 ΔE 0.059
- French Gray #ADB5BD ΔE 0.059
- Pale Violet #CEAEFA ΔE 0.060
- Light Steel Blue #B0C4DE ΔE 0.062
- Light Cornflower Blue #98C1D9 ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.063
Use #B1ADDE 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.