#A3C4E5
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.7% 0.059 248.6), rgb(163, 196, 229).
Aa
Black text reads best on this color (11.58:1).
About this color
#A3C4E5 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.059 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.018 away. Black text reads best on it, at 11.58:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.58:1 |
| White text | 1.81:1 |
Values
| HEX | #A3C4E5 |
| RGB | rgb(163, 196, 229) |
| HSL | hsl(210, 56%, 77%) |
| OKLCH | oklch(80.7% 0.059 248.6) |
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 #A3C4E5 | 1.81:1 | Fails | Lc -37.8 | Non-text elements, placeholder text |
| Black text on #A3C4E5 | 11.58:1 | AAA | Lc 70.1 | Content text, not long reading |
| #A3C4E5 text on white | 1.81:1 | Fails | Lc 33.7 | Non-text elements, placeholder text |
| #A3C4E5 text on black | 11.58:1 | AAA | Lc -68.9 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300 (this color)
#A3C4E5
oklch(80.7% 0.059 248.6)
-
Step 400
400
#71A6D9
oklch(70.8% 0.094 248.3)
-
Step 500
500
#488ECF
oklch(63% 0.121 248.8)
-
Step 600
600
#2677BC
oklch(55.6% 0.132 248.7)
-
Step 700
700
#1864A2
oklch(49.1% 0.122 248.6)
-
Step 800
800
#175283
oklch(42.7% 0.1 248.2)
-
Step 900
900
#1B4469
oklch(37.7% 0.078 248.6)
-
Step 950
950
#11283E
oklch(27% 0.05 249.3)
#A3C4E5 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) | #B7C4E7 | 0.026 |
| Deuteranopia (no green cones) | #AFBDE4 | 0.022 |
| Tritanopia (no blue cones) | #90CCCF | 0.050 |
| Achromatopsia (no color) | #C0C0C0 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3C4E5
#A3C4E5
oklch(80.7% 0.059 248.6)
- #DABA98
#DABA98
oklch(80.8% 0.059 68.5)
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 #A3C4E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.018
- Cloudy Blue #ACC2D9 ΔE 0.019
- Light Cornflower Blue #98C1D9 ΔE 0.023
- Light Grey Blue #9DBCD4 ΔE 0.030
- Light Blue Grey #B7C9E2 ΔE 0.030
- Sky Blue #87CEEB ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.039
- Light Sky Blue #87CEFA ΔE 0.041
Use #A3C4E5 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.