#999DAA
Closest named color: Cool Grey (#95A3A6). oklch(69.7% 0.019 272.2), rgb(153, 157, 170).
Aa
Black text reads best on this color (7.75:1).
About this color
#999DAA 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 0.020 away. Black text reads best on it, at 7.75:1.
| Hue family | Neutrals |
| Lightness | medium-light (70%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Cool Grey (#95A3A6) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #999DAA |
| RGB | rgb(153, 157, 170) |
| HSL | hsl(226, 9%, 63%) |
| OKLCH | oklch(69.7% 0.019 272.2) |
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 #999DAA | 2.70:1 | Fails | Lc -57.7 | Large or bold text, headings |
| Black text on #999DAA | 7.75:1 | AAA | Lc 51.5 | Large or bold text, headings |
| #999DAA text on white | 2.70:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #999DAA text on black | 7.75:1 | AAA | Lc -49.4 | 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
#D7D9DE
oklch(88.5% 0.007 268.5)
-
Step 300
300
#BEC0C9
oklch(80.9% 0.013 276.1)
-
Step 400
400 (this color)
#999DAA
oklch(69.7% 0.019 272.2)
-
Step 500
500
#848999
oklch(63.1% 0.025 271.9)
-
Step 600
600
#6E7384
oklch(55.7% 0.027 272.5)
-
Step 700
700
#5C606F
oklch(49.1% 0.024 273.7)
-
Step 800
800
#4B4E5B
oklch(42.6% 0.022 275.2)
-
Step 900
900
#3E414A
oklch(37.6% 0.016 271)
-
Step 950
950
#25262C
oklch(27% 0.011 278.1)
#999DAA 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) | #9A9EAB | 0.003 |
| Deuteranopia (no green cones) | #989DAA | 0.001 |
| Tritanopia (no blue cones) | #959FA1 | 0.017 |
| Achromatopsia (no color) | #9D9D9D | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999DAA
#999DAA
oklch(69.7% 0.019 272.2)
- #A29D90
#A29D90
oklch(69.6% 0.019 89.4)
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 #999DAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Grey #95A3A6 ΔE 0.020
- Bluey Grey #89A0B0 ΔE 0.022
- Cool Gray #8D99AE ΔE 0.022
- Cool Steel #97A7B3 ΔE 0.026
- Bluegrey #85A3B2 ΔE 0.029
- Pewter #96A8A1 ΔE 0.038
- Dark Gray #A9A9A9 ΔE 0.043
- Greyblue #77A1B5 ΔE 0.044
Use #999DAA 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.