#A4CFEB
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.3% 0.06 237), rgb(164, 207, 235).
Aa
Black text reads best on this color (12.70:1).
About this color
#A4CFEB is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.060 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.026 away. Black text reads best on it, at 12.70:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.70:1 |
| White text | 1.65:1 |
Values
| HEX | #A4CFEB |
| RGB | rgb(164, 207, 235) |
| HSL | hsl(204, 64%, 78%) |
| OKLCH | oklch(83.3% 0.06 237) |
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 #A4CFEB | 1.65:1 | Fails | Lc -32.5 | Non-text elements, placeholder text |
| Black text on #A4CFEB | 12.70:1 | AAA | Lc 75.0 | Content text, not long reading |
| #A4CFEB text on white | 1.65:1 | Fails | Lc 28.8 | Dividers and decoration only |
| #A4CFEB text on black | 12.70:1 | AAA | Lc -74.0 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C5DDED
oklch(88.5% 0.034 237)
-
Step 300
300 (this color)
#A4CFEB
oklch(83.3% 0.06 237)
-
Step 400
400
#62AAD5
oklch(70.8% 0.096 236.5)
-
Step 500
500
#2B93CA
oklch(63% 0.123 237.2)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#044766
oklch(37.7% 0.08 236.5)
-
Step 950
950
#082A3C
oklch(27.1% 0.051 236.4)
#A4CFEB 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) | #C3CEEC | 0.038 |
| Deuteranopia (no green cones) | #B9C6EB | 0.033 |
| Tritanopia (no blue cones) | #8ED6D8 | 0.045 |
| Achromatopsia (no color) | #C9C9C9 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4CFEB
#A4CFEB
oklch(83.3% 0.06 237)
- #E7BFA3
#E7BFA3
oklch(83.3% 0.06 56.8)
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 #A4CFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.027
- Light Blue #ADD8E6 ΔE 0.030
- Light Steel Blue #B0C4DE ΔE 0.031
- Sky Blue #87CEEB ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.036
- Light Sky Blue #87CEFA ΔE 0.037
- Celeste #A8DADC ΔE 0.042
Use #A4CFEB 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.