#ADB5EF
Closest named color: Pastel Blue (#A2BFFE). oklch(78.7% 0.083 278.2), rgb(173, 181, 239).
Aa
Black text reads best on this color (10.63:1).
About this color
#ADB5EF is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.083 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.030 away. Black text reads best on it, at 10.63:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.63:1 |
| White text | 1.97:1 |
Values
| HEX | #ADB5EF |
| RGB | rgb(173, 181, 239) |
| HSL | hsl(233, 67%, 81%) |
| OKLCH | oklch(78.7% 0.083 278.2) |
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 #ADB5EF | 1.97:1 | Fails | Lc -42.5 | Non-text elements, placeholder text |
| Black text on #ADB5EF | 10.63:1 | AAA | Lc 65.8 | Content text, not long reading |
| #ADB5EF text on white | 1.97:1 | Fails | Lc 38.1 | Non-text elements, placeholder text |
| #ADB5EF text on black | 10.63:1 | AAA | Lc -64.3 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300 (this color)
#ADB5EF
oklch(78.7% 0.083 278.2)
-
Step 400
400
#8E97F2
oklch(70.7% 0.133 278.1)
-
Step 500
500
#747AED
oklch(63% 0.17 278.1)
-
Step 600
600
#5F60DC
oklch(55.6% 0.185 278.2)
-
Step 700
700
#4F4EBF
oklch(49.1% 0.173 278.3)
-
Step 800
800
#40419A
oklch(42.7% 0.142 278.1)
-
Step 900
900
#36387B
oklch(37.7% 0.111 278.3)
-
Step 950
950
#1F2148
oklch(26.9% 0.071 278.2)
#ADB5EF 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) | #A4BBF2 | 0.018 |
| Deuteranopia (no green cones) | #A1B6EE | 0.016 |
| Tritanopia (no blue cones) | #9DC0C9 | 0.074 |
| Achromatopsia (no color) | #B8B8B8 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADB5EF
#ADB5EF
oklch(78.7% 0.083 278.2)
- #C7BB7C
#C7BB7C
oklch(78.7% 0.083 98.7)
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 #ADB5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.030
- Carolina Blue #8AB8FE ΔE 0.045
- Pale Violet #CEAEFA ΔE 0.053
- Light Grey Blue #9DBCD4 ΔE 0.053
- Light Steel Blue #B0C4DE ΔE 0.054
- Cloudy Blue #ACC2D9 ΔE 0.054
- Light Periwinkle #C1C6FC ΔE 0.054
- Light Cornflower Blue #98C1D9 ΔE 0.058
Use #ADB5EF 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.