#99B4CD
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.8% 0.047 246.4), rgb(153, 180, 205).
Aa
Black text reads best on this color (9.76:1).
About this color
#99B4CD is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.047 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.023 away. Black text reads best on it, at 9.76:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.76:1 |
| White text | 2.15:1 |
Values
| HEX | #99B4CD |
| RGB | rgb(153, 180, 205) |
| HSL | hsl(209, 34%, 70%) |
| OKLCH | oklch(75.8% 0.047 246.4) |
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 #99B4CD | 2.15:1 | Fails | Lc -46.9 | Large or bold text, headings |
| Black text on #99B4CD | 9.76:1 | AAA | Lc 61.7 | Content text, not long reading |
| #99B4CD text on white | 2.15:1 | Fails | Lc 42.2 | Non-text elements, placeholder text |
| #99B4CD text on black | 9.76:1 | AAA | Lc -60.0 | Large or bold text, headings |
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
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300 (this color)
#99B4CD
oklch(75.8% 0.047 246.4)
-
Step 400
400
#7AA6CD
oklch(70.8% 0.075 245.9)
-
Step 500
500
#568FC0
oklch(63.1% 0.096 246)
-
Step 600
600
#3A78AC
oklch(55.5% 0.103 246.4)
-
Step 700
700
#2C6594
oklch(49.1% 0.096 246.4)
-
Step 800
800
#265278
oklch(42.6% 0.08 247.1)
-
Step 900
900
#244461
oklch(37.6% 0.063 247.6)
-
Step 950
950
#162839
oklch(27% 0.04 248.2)
#99B4CD 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) | #AAB4CE | 0.022 |
| Deuteranopia (no green cones) | #A4AECD | 0.020 |
| Tritanopia (no blue cones) | #8ABABC | 0.039 |
| Achromatopsia (no color) | #B1B1B1 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B4CD
#99B4CD
oklch(75.8% 0.047 246.4)
- #C5AB92
#C5AB92
oklch(75.7% 0.046 65.9)
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 #99B4CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.023
- French Gray #ADB5BD ΔE 0.034
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Cool Steel #97A7B3 ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.047
- Dark Gray #A9A9A9 ΔE 0.052
- Light Steel Blue #B0C4DE ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.062
Use #99B4CD 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.