#999BA6
Closest named color: Cool Gray (#8D99AE). oklch(69.1% 0.016 277.7), rgb(153, 155, 166).
Aa
Black text reads best on this color (7.59:1).
About this color
#999BA6 is a medium-light close to neutral grey. In OKLCH its lightness is 69%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.022 away. Black text reads best on it, at 7.59:1.
| Hue family | Neutrals |
| Lightness | medium-light (69%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.59:1 |
| White text | 2.76:1 |
Values
| HEX | #999BA6 |
| RGB | rgb(153, 155, 166) |
| HSL | hsl(231, 7%, 63%) |
| OKLCH | oklch(69.1% 0.016 277.7) |
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 #999BA6 | 2.76:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #999BA6 | 7.59:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #999BA6 text on white | 2.76:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #999BA6 text on black | 7.59:1 | AAA | Lc -48.4 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9EAEC
oklch(93.7% 0.003 264.5)
-
Step 200
200
#D8D9DD
oklch(88.6% 0.006 275)
-
Step 300
300
#BFC0C7
oklch(80.9% 0.01 279.7)
-
Step 400
400 (this color)
#999BA6
oklch(69.1% 0.016 277.7)
-
Step 500
500
#868996
oklch(63.2% 0.02 275.5)
-
Step 600
600
#707281
oklch(55.6% 0.023 279.6)
-
Step 700
700
#5E606D
oklch(49.2% 0.021 278.7)
-
Step 800
800
#4C4E59
oklch(42.6% 0.018 277.4)
-
Step 900
900
#404149
oklch(37.7% 0.014 280.1)
-
Step 950
950
#25262B
oklch(27% 0.009 276.8)
#999BA6 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) | #989CA7 | 0.003 |
| Deuteranopia (no green cones) | #989BA6 | 0.001 |
| Tritanopia (no blue cones) | #969D9E | 0.016 |
| Achromatopsia (no color) | #9B9B9B | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999BA6
#999BA6
oklch(69.1% 0.016 277.7)
- #9E9C91
#9E9C91
oklch(69.1% 0.016 98.4)
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 #999BA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.022
- Cool Grey #95A3A6 ΔE 0.023
- Bluey Grey #89A0B0 ΔE 0.025
- Bluegrey #85A3B2 ΔE 0.032
- Cool Steel #97A7B3 ΔE 0.032
- Pewter #96A8A1 ΔE 0.040
- Greyblue #77A1B5 ΔE 0.046
- Dark Gray #A9A9A9 ΔE 0.046
Use #999BA6 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.