#ACC9FB
Closest named color: Baby Blue (#A2CFFE). oklch(83.2% 0.077 261.2), rgb(172, 201, 251).
Aa
Black text reads best on this color (12.50:1).
About this color
#ACC9FB is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.077 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.018 away. Black text reads best on it, at 12.50:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.50:1 |
| White text | 1.67:1 |
Values
| HEX | #ACC9FB |
| RGB | rgb(172, 201, 251) |
| HSL | hsl(218, 91%, 83%) |
| OKLCH | oklch(83.2% 0.077 261.2) |
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 #ACC9FB | 1.67:1 | Fails | Lc -33.4 | Non-text elements, placeholder text |
| Black text on #ACC9FB | 12.50:1 | AAA | Lc 74.1 | Content text, not long reading |
| #ACC9FB text on white | 1.67:1 | Fails | Lc 29.7 | Dividers and decoration only |
| #ACC9FB text on black | 12.50:1 | AAA | Lc -73.1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300 (this color)
#ACC9FB
oklch(83.2% 0.077 261.2)
-
Step 400
400
#74A0ED
oklch(70.6% 0.123 261.1)
-
Step 500
500
#5086E8
oklch(63.1% 0.159 261.3)
-
Step 600
600
#346ED6
oklch(55.7% 0.171 261)
-
Step 700
700
#275BBA
oklch(49.2% 0.16 261.2)
-
Step 800
800
#224B96
oklch(42.8% 0.132 261.2)
-
Step 900
900
#203F77
oklch(37.6% 0.103 261.2)
-
Step 950
950
#132546
oklch(26.9% 0.066 261.5)
#ACC9FB 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) | #B8CCFD | 0.018 |
| Deuteranopia (no green cones) | #B0C4FA | 0.013 |
| Tritanopia (no blue cones) | #95D3DA | 0.068 |
| Achromatopsia (no color) | #C8C8C8 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACC9FB
#ACC9FB
oklch(83.2% 0.077 261.2)
- #E2C38E
#E2C38E
oklch(83.1% 0.077 80.7)
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 #ACC9FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.018
- Light Periwinkle #C1C6FC ΔE 0.027
- Pastel Blue #A2BFFE ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.042
- Sky #82CAFC ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.047
Use #ACC9FB 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.