#A4CDEF
Closest named color: Baby Blue (#A2CFFE). oklch(83.1% 0.065 243.7), rgb(164, 205, 239).
Aa
Black text reads best on this color (12.55:1).
About this color
#A4CDEF is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.065 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.021 away. Black text reads best on it, at 12.55:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.55:1 |
| White text | 1.67:1 |
Values
| HEX | #A4CDEF |
| RGB | rgb(164, 205, 239) |
| HSL | hsl(207, 70%, 79%) |
| OKLCH | oklch(83.1% 0.065 243.7) |
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 #A4CDEF | 1.67:1 | Fails | Lc -33.2 | Non-text elements, placeholder text |
| Black text on #A4CDEF | 12.55:1 | AAA | Lc 74.4 | Content text, not long reading |
| #A4CDEF text on white | 1.67:1 | Fails | Lc 29.5 | Dividers and decoration only |
| #A4CDEF text on black | 12.55:1 | AAA | Lc -73.4 | 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
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300 (this color)
#A4CDEF
oklch(83.1% 0.065 243.7)
-
Step 400
400
#65A8DC
oklch(70.8% 0.103 243.4)
-
Step 500
500
#3291D3
oklch(63.2% 0.132 243.5)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#0A456C
oklch(37.6% 0.087 244.3)
-
Step 950
950
#0A293F
oklch(27.1% 0.054 243.5)
#A4CDEF 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) | #BFCDF1 | 0.034 |
| Deuteranopia (no green cones) | #B6C5EE | 0.028 |
| Tritanopia (no blue cones) | #8DD5D8 | 0.052 |
| Achromatopsia (no color) | #C8C8C8 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4CDEF
#A4CDEF
oklch(83.1% 0.065 243.7)
- #E6BF9C
#E6BF9C
oklch(83% 0.065 63.7)
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 #A4CDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.021
- Light Blue Grey #B7C9E2 ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.030
- Sky Blue #87CEEB ΔE 0.033
- Light Sky Blue #87CEFA ΔE 0.033
- Cloudy Blue #ACC2D9 ΔE 0.036
- Light Blue #ADD8E6 ΔE 0.038
- Sky #82CAFC ΔE 0.042
Use #A4CDEF 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.