#A4CFFB
Closest named color: Baby Blue (#A2CFFE). oklch(83.9% 0.077 249.3), rgb(164, 207, 251).
Aa
Black text reads best on this color (12.89:1).
About this color
#A4CFFB is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.077 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.005 away. Black text reads best on it, at 12.89:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.89:1 |
| White text | 1.62:1 |
Values
| HEX | #A4CFFB |
| RGB | rgb(164, 207, 251) |
| HSL | hsl(210, 92%, 81%) |
| OKLCH | oklch(83.9% 0.077 249.3) |
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 #A4CFFB | 1.62:1 | Fails | Lc -31.6 | Non-text elements, placeholder text |
| Black text on #A4CFFB | 12.89:1 | AAA | Lc 75.8 | Fine for body text |
| #A4CFFB text on white | 1.62:1 | Fails | Lc 28.0 | Dividers and decoration only |
| #A4CFFB text on black | 12.89:1 | AAA | Lc -74.9 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300 (this color)
#A4CFFB
oklch(83.9% 0.077 249.3)
-
Step 400
400
#60A6EA
oklch(70.8% 0.123 249.3)
-
Step 500
500
#298DE3
oklch(63% 0.157 249.5)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#034375
oklch(37.6% 0.103 249.6)
-
Step 950
950
#072844
oklch(27% 0.064 248.5)
#A4CFFB 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) | #BED0FD | 0.032 |
| Deuteranopia (no green cones) | #B3C7FA | 0.026 |
| Tritanopia (no blue cones) | #88D9DD | 0.066 |
| Achromatopsia (no color) | #CBCBCB | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4CFFB
#A4CFFB
oklch(83.9% 0.077 249.3)
- #ECC294
#ECC294
oklch(84% 0.077 69)
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 #A4CFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.005
- Light Sky Blue #87CEFA ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.038
- Sky #82CAFC ΔE 0.040
- Sky Blue #87CEEB ΔE 0.041
- Light Periwinkle #C1C6FC ΔE 0.041
- Light Steel Blue #B0C4DE ΔE 0.043
- Pastel Blue #A2BFFE ΔE 0.045
Use #A4CFFB 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.