#A3BBCB
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.9% 0.035 237.1), rgb(163, 187, 203).
Aa
Black text reads best on this color (10.52:1).
About this color
#A3BBCB is a medium-light, muted blue. In OKLCH its lightness is 78%, its chroma 0.035 and its hue 237°. 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 10.52:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.52:1 |
| White text | 1.99:1 |
Values
| HEX | #A3BBCB |
| RGB | rgb(163, 187, 203) |
| HSL | hsl(204, 28%, 72%) |
| OKLCH | oklch(77.9% 0.035 237.1) |
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 #A3BBCB | 1.99:1 | Fails | Lc -43.1 | Non-text elements, placeholder text |
| Black text on #A3BBCB | 10.52:1 | AAA | Lc 65.3 | Content text, not long reading |
| #A3BBCB text on white | 1.99:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #A3BBCB text on black | 10.52:1 | AAA | Lc -63.8 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE5
oklch(88.5% 0.02 240.8)
-
Step 300
300 (this color)
#A3BBCB
oklch(77.9% 0.035 237.1)
-
Step 400
400
#80A6BF
oklch(70.6% 0.055 237.4)
-
Step 500
500
#5F90AF
oklch(63.1% 0.071 237.2)
-
Step 600
600
#447A9B
oklch(55.6% 0.077 237.2)
-
Step 700
700
#356785
oklch(49.2% 0.072 237.1)
-
Step 800
800
#2D546C
oklch(42.8% 0.06 237.4)
-
Step 900
900
#284557
oklch(37.6% 0.047 237.1)
-
Step 950
950
#182933
oklch(27.1% 0.029 235.2)
#A3BBCB 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) | #B4BACC | 0.022 |
| Deuteranopia (no green cones) | #AFB6CB | 0.020 |
| Tritanopia (no blue cones) | #98BFC0 | 0.026 |
| Achromatopsia (no color) | #B7B7B7 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBCB
#A3BBCB
oklch(77.9% 0.035 237.1)
- #C9B2A2
#C9B2A2
oklch(77.9% 0.035 57)
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 #A3BBCB, 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
- French Gray #ADB5BD ΔE 0.023
- Light Cornflower Blue #98C1D9 ΔE 0.023
- Cloudy Blue #ACC2D9 ΔE 0.028
- Light Steel Blue #B0C4DE ΔE 0.037
- Silver #C0C0C0 ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.053
- Dark Gray #A9A9A9 ΔE 0.056
Use #A3BBCB 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.