#B4CDDF
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.5% 0.037 239.2), rgb(180, 205, 223).
Aa
Black text reads best on this color (12.73:1).
About this color
#B4CDDF is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.037 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.013 away. Black text reads best on it, at 12.73:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.73:1 |
| White text | 1.64:1 |
Values
| HEX | #B4CDDF |
| RGB | rgb(180, 205, 223) |
| HSL | hsl(205, 40%, 79%) |
| OKLCH | oklch(83.5% 0.037 239.2) |
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 #B4CDDF | 1.64:1 | Fails | Lc -32.4 | Non-text elements, placeholder text |
| Black text on #B4CDDF | 12.73:1 | AAA | Lc 75.1 | Fine for body text |
| #B4CDDF text on white | 1.64:1 | Fails | Lc 28.7 | Dividers and decoration only |
| #B4CDDF text on black | 12.73:1 | AAA | Lc -74.2 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE5
oklch(88.4% 0.02 238.7)
-
Step 300
300 (this color)
#B4CDDF
oklch(83.5% 0.037 239.2)
-
Step 400
400
#7FA6C2
oklch(70.7% 0.059 239.9)
-
Step 500
500
#5D90B3
oklch(63.1% 0.076 239.6)
-
Step 600
600
#427A9E
oklch(55.6% 0.082 238.8)
-
Step 700
700
#336687
oklch(49% 0.076 239.3)
-
Step 800
800
#2B546E
oklch(42.8% 0.063 238.5)
-
Step 900
900
#284559
oklch(37.7% 0.049 240)
-
Step 950
950
#182934
oklch(27.1% 0.031 237.8)
#B4CDDF 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) | #C5CCE0 | 0.022 |
| Deuteranopia (no green cones) | #C0C7DF | 0.021 |
| Tritanopia (no blue cones) | #A9D2D3 | 0.029 |
| Achromatopsia (no color) | #C9C9C9 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4CDDF
#B4CDDF
oklch(83.5% 0.037 239.2)
- #DCC4B2
#DCC4B2
oklch(83.6% 0.037 59.1)
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 #B4CDDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.013
- Light Steel Blue #B0C4DE ΔE 0.025
- Light Blue #ADD8E6 ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.031
- Celeste #A8DADC ΔE 0.038
- Cadet Gray #CED4DA ΔE 0.041
- Baby Blue #A2CFFE ΔE 0.046
- Silver #C0C0C0 ΔE 0.046
Use #B4CDDF 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.