#ACC3DD
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.8% 0.045 251.6), rgb(172, 195, 221).
Aa
Black text reads best on this color (11.60:1).
About this color
#ACC3DD is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.045 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.006 away. Black text reads best on it, at 11.60:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.60:1 |
| White text | 1.80:1 |
Values
| HEX | #ACC3DD |
| RGB | rgb(172, 195, 221) |
| HSL | hsl(212, 42%, 77%) |
| OKLCH | oklch(80.8% 0.045 251.6) |
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 #ACC3DD | 1.80:1 | Fails | Lc -37.8 | Non-text elements, placeholder text |
| Black text on #ACC3DD | 11.60:1 | AAA | Lc 70.2 | Content text, not long reading |
| #ACC3DD text on white | 1.80:1 | Fails | Lc 33.7 | Non-text elements, placeholder text |
| #ACC3DD text on black | 11.60:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300 (this color)
#ACC3DD
oklch(80.8% 0.045 251.6)
-
Step 400
400
#80A4CC
oklch(70.7% 0.071 251.5)
-
Step 500
500
#5F8DBF
oklch(63.1% 0.091 251.4)
-
Step 600
600
#4576AB
oklch(55.5% 0.099 251.7)
-
Step 700
700
#366393
oklch(49% 0.092 251.6)
-
Step 800
800
#2D5177
oklch(42.6% 0.076 251.2)
-
Step 900
900
#294360
oklch(37.6% 0.059 252.1)
-
Step 950
950
#182838
oklch(27.1% 0.037 249.3)
#ACC3DD 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) | #BAC3DE | 0.018 |
| Deuteranopia (no green cones) | #B4BEDC | 0.016 |
| Tritanopia (no blue cones) | #9FC9CB | 0.039 |
| Achromatopsia (no color) | #C1C1C1 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACC3DD
#ACC3DD
oklch(80.8% 0.045 251.6)
- #D3BCA2
#D3BCA2
oklch(80.8% 0.044 70.6)
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 #ACC3DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.006
- Light Steel Blue #B0C4DE ΔE 0.006
- Light Blue Grey #B7C9E2 ΔE 0.023
- Light Cornflower Blue #98C1D9 ΔE 0.026
- Light Grey Blue #9DBCD4 ΔE 0.029
- Silver #C0C0C0 ΔE 0.045
- Sky Blue #87CEEB ΔE 0.047
- Baby Blue #A2CFFE ΔE 0.048
Use #ACC3DD 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.