#A1B3CA
Closest named color: Light Grey Blue (#9DBCD4). oklch(76% 0.039 254.6), rgb(161, 179, 202).
Aa
Black text reads best on this color (9.81:1).
About this color
#A1B3CA is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.039 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.024 away. Black text reads best on it, at 9.81:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.81:1 |
| White text | 2.13:1 |
Values
| HEX | #A1B3CA |
| RGB | rgb(161, 179, 202) |
| HSL | hsl(214, 28%, 71%) |
| OKLCH | oklch(76% 0.039 254.6) |
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 #A1B3CA | 2.13:1 | Fails | Lc -46.7 | Large or bold text, headings |
| Black text on #A1B3CA | 9.81:1 | AAA | Lc 62.0 | Content text, not long reading |
| #A1B3CA text on white | 2.13:1 | Fails | Lc 42.0 | Non-text elements, placeholder text |
| #A1B3CA text on black | 9.81:1 | AAA | Lc -60.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300 (this color)
#A1B3CA
oklch(76% 0.039 254.6)
-
Step 400
400
#87A3C7
oklch(70.7% 0.062 254.9)
-
Step 500
500
#688CB9
oklch(63.1% 0.079 254.4)
-
Step 600
600
#5075A5
oklch(55.5% 0.086 255.3)
-
Step 700
700
#40628D
oklch(49% 0.08 254.9)
-
Step 800
800
#355073
oklch(42.6% 0.067 255.3)
-
Step 900
900
#2E435D
oklch(37.7% 0.052 254.2)
-
Step 950
950
#1B2736
oklch(26.9% 0.033 254.4)
#A1B3CA 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) | #ABB4CB | 0.014 |
| Deuteranopia (no green cones) | #A7AFCA | 0.013 |
| Tritanopia (no blue cones) | #97B8BA | 0.034 |
| Achromatopsia (no color) | #B1B1B1 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1B3CA
#A1B3CA
oklch(76% 0.039 254.6)
- #C0AE97
#C0AE97
oklch(76% 0.038 73.9)
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 #A1B3CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.024
- French Gray #ADB5BD ΔE 0.026
- Light Cornflower Blue #98C1D9 ΔE 0.037
- Cool Steel #97A7B3 ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.045
- Dark Gray #A9A9A9 ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.053
- Silver #C0C0C0 ΔE 0.061
Use #A1B3CA 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.