#A4D5FF
Closest named color: Baby Blue (#A2CFFE). oklch(85.3% 0.078 244.8), rgb(164, 213, 255).
Aa
Black text reads best on this color (13.54:1).
About this color
#A4D5FF is a light, moderately saturated blue. In OKLCH its lightness is 85%, its chroma 0.078 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.016 away. Black text reads best on it, at 13.54:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.54:1 |
| White text | 1.55:1 |
Values
| HEX | #A4D5FF |
| RGB | rgb(164, 213, 255) |
| HSL | hsl(208, 100%, 82%) |
| OKLCH | oklch(85.3% 0.078 244.8) |
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 #A4D5FF | 1.55:1 | Fails | Lc -28.6 | Dividers and decoration only |
| Black text on #A4D5FF | 13.54:1 | AAA | Lc 78.5 | Fine for body text |
| #A4D5FF text on white | 1.55:1 | Fails | Lc 25.3 | Dividers and decoration only |
| #A4D5FF text on black | 13.54:1 | AAA | Lc -77.8 | Fine for body text |
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 200.
-
Step 50
50
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#DAECFC
oklch(93.5% 0.029 244.9)
-
Step 200
200 (this color)
#A4D5FF
oklch(85.3% 0.078 244.8)
-
Step 300
300
#88C8FD
oklch(80.9% 0.1 244.5)
-
Step 400
400
#2FA8FD
oklch(70.7% 0.161 245)
-
Step 500
500
#0090E1
oklch(63.1% 0.158 244.7)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#002945
oklch(27.1% 0.068 244.5)
#A4D5FF 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) | #C4D5FF | 0.038 |
| Deuteranopia (no green cones) | #B8CBFE | 0.033 |
| Tritanopia (no blue cones) | #85DFE3 | 0.064 |
| Achromatopsia (no color) | #CFCFCF | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4D5FF
#A4D5FF
oklch(85.3% 0.078 244.8)
- #F3C599
#F3C599
oklch(85.3% 0.078 65.2)
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 #A4D5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.016
- Light Sky Blue #87CEFA ΔE 0.039
- Light Blue #ADD8E6 ΔE 0.040
- Light Blue Grey #B7C9E2 ΔE 0.046
- Sky Blue #87CEEB ΔE 0.047
- Light Periwinkle #C1C6FC ΔE 0.049
- Sky #82CAFC ΔE 0.049
- Light Steel Blue #B0C4DE ΔE 0.054
Use #A4D5FF 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.