#99ABB4
Closest named color: Cool Steel (#97A7B3). oklch(73% 0.024 229.2), rgb(153, 171, 180).
Aa
Black text reads best on this color (8.83:1).
About this color
#99ABB4 is a medium-light close to neutral grey. In OKLCH its lightness is 73%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.011 away. Black text reads best on it, at 8.83:1.
| Hue family | Neutrals |
| Lightness | medium-light (73%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.83:1 |
| White text | 2.37:1 |
Values
| HEX | #99ABB4 |
| RGB | rgb(153, 171, 180) |
| HSL | hsl(200, 15%, 65%) |
| OKLCH | oklch(73% 0.024 229.2) |
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 #99ABB4 | 2.37:1 | Fails | Lc -51.8 | Large or bold text, headings |
| Black text on #99ABB4 | 8.83:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #99ABB4 text on white | 2.37:1 | Fails | Lc 46.8 | Large or bold text, headings |
| #99ABB4 text on black | 8.83:1 | AAA | Lc -55.2 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D4DADD
oklch(88.5% 0.008 228.9)
-
Step 300
300
#B7C3C8
oklch(80.9% 0.015 224.5)
-
Step 400
400 (this color)
#99ABB4
oklch(73% 0.024 229.2)
-
Step 500
500
#778D99
oklch(63% 0.031 231.8)
-
Step 600
600
#607783
oklch(55.5% 0.033 230.8)
-
Step 700
700
#4F646F
oklch(49% 0.031 231)
-
Step 800
800
#41525A
oklch(42.7% 0.025 228.1)
-
Step 900
900
#37444A
oklch(37.7% 0.02 227.5)
-
Step 950
950
#20282B
oklch(27% 0.013 222.5)
#99ABB4 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) | #A6AAB5 | 0.018 |
| Deuteranopia (no green cones) | #A2A7B4 | 0.016 |
| Tritanopia (no blue cones) | #92AEAE | 0.017 |
| Achromatopsia (no color) | #A8A8A8 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ABB4
#99ABB4
oklch(73% 0.024 229.2)
- #B5A49B
#B5A49B
oklch(73.1% 0.024 49.8)
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 #99ABB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.011
- Dark Gray #A9A9A9 ΔE 0.024
- Cool Grey #95A3A6 ΔE 0.027
- Pewter #96A8A1 ΔE 0.027
- Bluegrey #85A3B2 ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.039
- French Gray #ADB5BD ΔE 0.041
- Cement #A5A391 ΔE 0.048
Use #99ABB4 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.