#ADCDDF
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.1% 0.043 232.6), rgb(173, 205, 223).
Aa
Black text reads best on this color (12.57:1).
About this color
#ADCDDF is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.043 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.017 away. Black text reads best on it, at 12.57:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.57:1 |
| White text | 1.66:1 |
Values
| HEX | #ADCDDF |
| RGB | rgb(173, 205, 223) |
| HSL | hsl(202, 44%, 78%) |
| OKLCH | oklch(83.1% 0.043 232.6) |
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 #ADCDDF | 1.66:1 | Fails | Lc -33.1 | Non-text elements, placeholder text |
| Black text on #ADCDDF | 12.57:1 | AAA | Lc 74.4 | Content text, not long reading |
| #ADCDDF text on white | 1.66:1 | Fails | Lc 29.4 | Dividers and decoration only |
| #ADCDDF text on black | 12.57:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300 (this color)
#ADCDDF
oklch(83.1% 0.043 232.6)
-
Step 400
400
#75A8C4
oklch(70.6% 0.068 233)
-
Step 500
500
#4E93B5
oklch(63.2% 0.086 231.8)
-
Step 600
600
#2E7CA1
oklch(55.5% 0.094 232.8)
-
Step 700
700
#1F698A
oklch(49.2% 0.088 232.2)
-
Step 800
800
#1D5570
oklch(42.6% 0.073 233.2)
-
Step 900
900
#1E475B
oklch(37.8% 0.057 232.2)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#ADCDDF 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) | #C4CCE0 | 0.029 |
| Deuteranopia (no green cones) | #BDC6DF | 0.026 |
| Tritanopia (no blue cones) | #9FD2D3 | 0.030 |
| Achromatopsia (no color) | #C8C8C8 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ADCDDF
#ADCDDF
oklch(83.1% 0.043 232.6)
- #DFC1AF
#DFC1AF
oklch(83.2% 0.042 52.9)
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 #ADCDDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.017
- Light Steel Blue #B0C4DE ΔE 0.024
- Light Blue #ADD8E6 ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.029
- Celeste #A8DADC ΔE 0.037
- Sky Blue #87CEEB ΔE 0.043
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Baby Blue #A2CFFE ΔE 0.044
Use #ADCDDF 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.