#99BBBB
Closest named color: French Gray (#ADB5BD). oklch(76.7% 0.037 196.4), rgb(153, 187, 187).
Aa
Black text reads best on this color (10.18:1).
About this color
#99BBBB is a medium-light, muted teal or cyan. In OKLCH its lightness is 77%, its chroma 0.037 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.030 away. Black text reads best on it, at 10.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 10.18:1 |
| White text | 2.06:1 |
Values
| HEX | #99BBBB |
| RGB | rgb(153, 187, 187) |
| HSL | hsl(180, 20%, 67%) |
| OKLCH | oklch(76.7% 0.037 196.4) |
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 #99BBBB | 2.06:1 | Fails | Lc -44.8 | Non-text elements, placeholder text |
| Black text on #99BBBB | 10.18:1 | AAA | Lc 63.7 | Content text, not long reading |
| #99BBBB text on white | 2.06:1 | Fails | Lc 40.2 | Non-text elements, placeholder text |
| #99BBBB text on black | 10.18:1 | AAA | Lc -62.1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDEDD
oklch(88.6% 0.02 193)
-
Step 300
300 (this color)
#99BBBB
oklch(76.7% 0.037 196.4)
-
Step 400
400
#74ACAD
oklch(70.6% 0.059 197.3)
-
Step 500
500
#4C9899
oklch(63.2% 0.075 196.6)
-
Step 600
600
#298283
oklch(55.6% 0.082 196.1)
-
Step 700
700
#1A6E6F
oklch(49.1% 0.076 196.2)
-
Step 800
800
#1A5A5A
oklch(42.8% 0.063 195.1)
-
Step 900
900
#1D4A4A
oklch(37.8% 0.049 195.3)
-
Step 950
950
#122B2B
oklch(26.9% 0.031 195.5)
#99BBBB 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) | #B6B8BB | 0.038 |
| Deuteranopia (no green cones) | #AFB2BB | 0.036 |
| Tritanopia (no blue cones) | #8FBDBB | 0.012 |
| Achromatopsia (no color) | #B4B4B4 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BBBB
#99BBBB
oklch(76.7% 0.037 196.4)
- #CAAAAB
#CAAAAB
oklch(76.6% 0.037 15.9)
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 #99BBBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.030
- Light Grey Blue #9DBCD4 ΔE 0.037
- Light Cornflower Blue #98C1D9 ΔE 0.041
- Dark Gray #A9A9A9 ΔE 0.049
- Cloudy Blue #ACC2D9 ΔE 0.051
- Cool Steel #97A7B3 ΔE 0.054
- Silver #C0C0C0 ΔE 0.055
- Pewter #96A8A1 ΔE 0.055
Use #99BBBB 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.