#999AAB
Closest named color: Cool Gray (#8D99AE). oklch(69.1% 0.025 283), rgb(153, 154, 171).
Aa
Black text reads best on this color (7.56:1).
About this color
#999AAB is a medium-light close to neutral grey. In OKLCH its lightness is 69%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.018 away. Black text reads best on it, at 7.56:1.
| Hue family | Neutrals |
| Lightness | medium-light (69%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.56:1 |
| White text | 2.77:1 |
Values
| HEX | #999AAB |
| RGB | rgb(153, 154, 171) |
| HSL | hsl(237, 10%, 64%) |
| OKLCH | oklch(69.1% 0.025 283) |
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 #999AAB | 2.77:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #999AAB | 7.56:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #999AAB text on white | 2.77:1 | Fails | Lc 53.6 | Large or bold text, headings |
| #999AAB text on black | 7.56:1 | AAA | Lc -48.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D8D8DF
oklch(88.4% 0.01 286.2)
-
Step 300
300
#BFBFCB
oklch(80.8% 0.017 286)
-
Step 400
400 (this color)
#999AAB
oklch(69.1% 0.025 283)
-
Step 500
500
#86879D
oklch(63% 0.033 283.4)
-
Step 600
600
#707187
oklch(55.6% 0.034 283.2)
-
Step 700
700
#5E5F73
oklch(49.2% 0.032 282.9)
-
Step 800
800
#4D4D5D
oklch(42.6% 0.026 285.2)
-
Step 900
900
#40404C
oklch(37.6% 0.02 285.4)
-
Step 950
950
#25262D
oklch(27.1% 0.013 279.1)
#999AAB 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) | #969CAC | 0.006 |
| Deuteranopia (no green cones) | #959BAB | 0.006 |
| Tritanopia (no blue cones) | #959D9F | 0.023 |
| Achromatopsia (no color) | #9B9B9B | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999AAB
#999AAB
oklch(69.1% 0.025 283)
- #9E9D8B
#9E9D8B
oklch(69.2% 0.026 104.4)
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 #999AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.018
- Bluey Grey #89A0B0 ΔE 0.025
- Cool Grey #95A3A6 ΔE 0.029
- Bluegrey #85A3B2 ΔE 0.033
- Cool Steel #97A7B3 ΔE 0.034
- Greyblue #77A1B5 ΔE 0.045
- Pewter #96A8A1 ΔE 0.046
- Dark Gray #A9A9A9 ΔE 0.050
Use #999AAB 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.