#819899
Closest named color: Cool Gray (#8D99AE). oklch(66.2% 0.026 199.8), rgb(129, 152, 153).
Aa
Black text reads best on this color (6.88:1).
About this color
#819899 is a medium-light close to neutral grey. In OKLCH its lightness is 66%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.037 away. Black text reads best on it, at 6.88:1.
| Hue family | Neutrals |
| Lightness | medium-light (66%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.88:1 |
| White text | 3.05:1 |
Values
| HEX | #819899 |
| RGB | rgb(129, 152, 153) |
| HSL | hsl(183, 11%, 55%) |
| OKLCH | oklch(66.2% 0.026 199.8) |
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 #819899 | 3.05:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #819899 | 6.88:1 | AA | Lc 46.7 | Large or bold text, headings |
| #819899 text on white | 3.05:1 | AA large text | Lc 57.3 | Large or bold text, headings |
| #819899 text on black | 6.88:1 | AA | Lc -44.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D4DBDB
oklch(88.6% 0.008 197)
-
Step 300
300
#B8C3C4
oklch(80.9% 0.012 203.4)
-
Step 400
400
#93A5A5
oklch(70.8% 0.02 196.7)
-
Step 500
500 (this color)
#819899
oklch(66.2% 0.026 199.8)
-
Step 600
600
#60797A
oklch(55.7% 0.029 199.4)
-
Step 700
700
#506566
oklch(49% 0.025 200)
-
Step 800
800
#415354
oklch(42.7% 0.022 200.5)
-
Step 900
900
#374445
oklch(37.6% 0.017 202.2)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#819899 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) | #959699 | 0.027 |
| Deuteranopia (no green cones) | #909299 | 0.025 |
| Tritanopia (no blue cones) | #7A9A98 | 0.011 |
| Achromatopsia (no color) | #949494 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819899
#819899
oklch(66.2% 0.026 199.8)
- #A28D8C
#A28D8C
oklch(66.2% 0.025 21.1)
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 #819899, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.037
- Bluey Grey #89A0B0 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.039
- Greyblue #77A1B5 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.042
- Blue Grey #758DA3 ΔE 0.043
- Cool Grey #95A3A6 ΔE 0.044
- Warm Grey #978A84 ΔE 0.047
Use #819899 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.