#A4BDDB
Closest named color: Light Grey Blue (#9DBCD4). oklch(79% 0.051 253.1), rgb(164, 189, 219).
Aa
Black text reads best on this color (10.88:1).
About this color
#A4BDDB is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.051 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.014 away. Black text reads best on it, at 10.88:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.88:1 |
| White text | 1.93:1 |
Values
| HEX | #A4BDDB |
| RGB | rgb(164, 189, 219) |
| HSL | hsl(213, 43%, 75%) |
| OKLCH | oklch(79% 0.051 253.1) |
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 #A4BDDB | 1.93:1 | Fails | Lc -41.3 | Non-text elements, placeholder text |
| Black text on #A4BDDB | 10.88:1 | AAA | Lc 66.9 | Content text, not long reading |
| #A4BDDB text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #A4BDDB text on black | 10.88:1 | AAA | Lc -65.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300 (this color)
#A4BDDB
oklch(79% 0.051 253.1)
-
Step 400
400
#7CA4D3
oklch(70.7% 0.082 252.9)
-
Step 500
500
#5A8CC7
oklch(63% 0.105 253.4)
-
Step 600
600
#3F76B4
oklch(55.7% 0.113 252.9)
-
Step 700
700
#31639A
oklch(49.2% 0.104 252.6)
-
Step 800
800
#29517D
oklch(42.8% 0.086 252.4)
-
Step 900
900
#264365
oklch(37.7% 0.068 253.4)
-
Step 950
950
#17273B
oklch(26.9% 0.043 254.6)
#A4BDDB 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) | #B2BEDC | 0.019 |
| Deuteranopia (no green cones) | #ACB8DA | 0.016 |
| Tritanopia (no blue cones) | #95C4C7 | 0.044 |
| Achromatopsia (no color) | #BBBBBB | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4BDDB
#A4BDDB
oklch(79% 0.051 253.1)
- #CFB697
#CFB697
oklch(79% 0.051 72.9)
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 #A4BDDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.014
- Light Cornflower Blue #98C1D9 ΔE 0.018
- Cloudy Blue #ACC2D9 ΔE 0.019
- Light Steel Blue #B0C4DE ΔE 0.025
- French Gray #ADB5BD ΔE 0.042
- Light Blue Grey #B7C9E2 ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.050
- Sky Blue #87CEEB ΔE 0.050
Use #A4BDDB 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.