#999FAB
Closest named color: Cool Grey (#95A3A6). oklch(70.1% 0.019 264.4), rgb(153, 159, 171).
Aa
Black text reads best on this color (7.90:1).
About this color
#999FAB is a medium-light close to neutral grey. In OKLCH its lightness is 70%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Cool Grey (#95A3A6), ΔE 0.016 away. Black text reads best on it, at 7.90:1.
| Hue family | Neutrals |
| Lightness | medium-light (70%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Cool Grey (#95A3A6) |
| Black text | 7.90:1 |
| White text | 2.65:1 |
Values
| HEX | #999FAB |
| RGB | rgb(153, 159, 171) |
| HSL | hsl(220, 10%, 64%) |
| OKLCH | oklch(70.1% 0.019 264.4) |
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 #999FAB | 2.65:1 | Fails | Lc -56.9 | Large or bold text, headings |
| Black text on #999FAB | 7.90:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #999FAB text on white | 2.65:1 | Fails | Lc 51.7 | Large or bold text, headings |
| #999FAB text on black | 7.90:1 | AAA | Lc -50.2 | 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
#D7D9DD
oklch(88.5% 0.006 264.5)
-
Step 300
300
#BDC1C8
oklch(81% 0.011 261.8)
-
Step 400
400 (this color)
#999FAB
oklch(70.1% 0.019 264.4)
-
Step 500
500
#828A99
oklch(63.2% 0.024 263.1)
-
Step 600
600
#6C7383
oklch(55.5% 0.026 266.7)
-
Step 700
700
#5A616F
oklch(49.2% 0.024 264.3)
-
Step 800
800
#494F5A
oklch(42.6% 0.02 262.6)
-
Step 900
900
#3D424A
oklch(37.7% 0.015 259.8)
-
Step 950
950
#24262B
oklch(26.9% 0.01 268.3)
#999FAB 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) | #9BA0AC | 0.004 |
| Deuteranopia (no green cones) | #9A9EAB | 0.003 |
| Tritanopia (no blue cones) | #95A1A3 | 0.016 |
| Achromatopsia (no color) | #9F9F9F | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999FAB
#999FAB
oklch(70.1% 0.019 264.4)
- #A49E92
#A49E92
oklch(70.1% 0.019 84.6)
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 #999FAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Grey #95A3A6 ΔE 0.016
- Cool Steel #97A7B3 ΔE 0.021
- Bluey Grey #89A0B0 ΔE 0.021
- Cool Gray #8D99AE ΔE 0.026
- Bluegrey #85A3B2 ΔE 0.027
- Pewter #96A8A1 ΔE 0.033
- Dark Gray #A9A9A9 ΔE 0.038
- Greyblue #77A1B5 ΔE 0.043
Use #999FAB 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.