#99B8CD
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.7% 0.045 237.8), rgb(153, 184, 205).
Aa
Black text reads best on this color (10.09:1).
About this color
#99B8CD is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.045 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.014 away. Black text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.09:1 |
| White text | 2.08:1 |
Values
| HEX | #99B8CD |
| RGB | rgb(153, 184, 205) |
| HSL | hsl(204, 34%, 70%) |
| OKLCH | oklch(76.7% 0.045 237.8) |
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 #99B8CD | 2.08:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #99B8CD | 10.09:1 | AAA | Lc 63.3 | Content text, not long reading |
| #99B8CD text on white | 2.08:1 | Fails | Lc 40.7 | Non-text elements, placeholder text |
| #99B8CD text on black | 10.09:1 | AAA | Lc -61.6 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300 (this color)
#99B8CD
oklch(76.7% 0.045 237.8)
-
Step 400
400
#75A8C9
oklch(70.8% 0.073 237.5)
-
Step 500
500
#4E91BB
oklch(63% 0.093 238.2)
-
Step 600
600
#2E7BA7
oklch(55.6% 0.101 237.8)
-
Step 700
700
#20688F
oklch(49.2% 0.093 237.2)
-
Step 800
800
#1D5574
oklch(42.8% 0.077 237)
-
Step 900
900
#1F465E
oklch(37.7% 0.06 238.3)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#99B8CD 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) | #AFB7CE | 0.028 |
| Deuteranopia (no green cones) | #A8B1CD | 0.026 |
| Tritanopia (no blue cones) | #8ABDBF | 0.034 |
| Achromatopsia (no color) | #B4B4B4 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B8CD
#99B8CD
oklch(76.7% 0.045 237.8)
- #CAAD97
#CAAD97
oklch(76.7% 0.046 59.2)
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 #99B8CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.014
- Light Cornflower Blue #98C1D9 ΔE 0.025
- French Gray #ADB5BD ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.040
- Light Steel Blue #B0C4DE ΔE 0.049
- Cool Steel #97A7B3 ΔE 0.051
- Dark Gray #A9A9A9 ΔE 0.055
- Silver #C0C0C0 ΔE 0.061
Use #99B8CD 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.