#99B3BC
Closest named color: French Gray (#ADB5BD). oklch(75% 0.031 220.7), rgb(153, 179, 188).
Aa
Black text reads best on this color (9.52:1).
About this color
#99B3BC is a medium-light, muted teal or cyan. In OKLCH its lightness is 75%, its chroma 0.031 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.027 away. Black text reads best on it, at 9.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.52:1 |
| White text | 2.20:1 |
Values
| HEX | #99B3BC |
| RGB | rgb(153, 179, 188) |
| HSL | hsl(195, 21%, 67%) |
| OKLCH | oklch(75% 0.031 220.7) |
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 #99B3BC | 2.20:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #99B3BC | 9.52:1 | AAA | Lc 60.6 | Content text, not long reading |
| #99B3BC text on white | 2.20:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #99B3BC text on black | 9.52:1 | AAA | Lc -58.8 | 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 400.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4CA
oklch(81% 0.019 222.2)
-
Step 400
400 (this color)
#99B3BC
oklch(75% 0.031 220.7)
-
Step 500
500
#6F909B
oklch(63.2% 0.04 220.3)
-
Step 600
600
#577A85
oklch(55.7% 0.043 219.3)
-
Step 700
700
#476671
oklch(49% 0.04 222)
-
Step 800
800
#3A535C
oklch(42.6% 0.034 222.2)
-
Step 900
900
#32454B
oklch(37.7% 0.026 219.2)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#99B3BC 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) | #ADB1BD | 0.027 |
| Deuteranopia (no green cones) | #A8ADBC | 0.024 |
| Tritanopia (no blue cones) | #8FB6B6 | 0.019 |
| Achromatopsia (no color) | #AFAFAF | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B3BC
#99B3BC
oklch(75% 0.031 220.7)
- #C0A89F
#C0A89F
oklch(75% 0.031 41.7)
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 #99B3BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.027
- Cool Steel #97A7B3 ΔE 0.032
- Dark Gray #A9A9A9 ΔE 0.035
- Light Grey Blue #9DBCD4 ΔE 0.037
- Pewter #96A8A1 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.047
- Bluegrey #85A3B2 ΔE 0.053
Use #99B3BC 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.