#818F97
Closest named color: Blue Grey (#758DA3). oklch(64.1% 0.02 232.7), rgb(129, 143, 151).
Aa
Black text reads best on this color (6.30:1).
About this color
#818F97 is a medium-light close to neutral grey. In OKLCH its lightness is 64%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Blue Grey (#758DA3), ΔE 0.026 away. Black text reads best on it, at 6.30:1.
| Hue family | Neutrals |
| Lightness | medium-light (64%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 6.30:1 |
| White text | 3.32:1 |
Values
| HEX | #818F97 |
| RGB | rgb(129, 143, 151) |
| HSL | hsl(202, 10%, 55%) |
| OKLCH | oklch(64.1% 0.02 232.7) |
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 #818F97 | 3.32:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #818F97 | 6.30:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #818F97 text on white | 3.32:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #818F97 text on black | 6.30:1 | AA | Lc -41.0 | 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
#F4F5F6
oklch(97% 0.002 247.8)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADC
oklch(88.6% 0.005 228.8)
-
Step 300
300
#BBC2C6
oklch(81% 0.01 232.4)
-
Step 400
400
#97A3A9
oklch(70.8% 0.016 229.1)
-
Step 500
500 (this color)
#818F97
oklch(64.1% 0.02 232.7)
-
Step 600
600
#67767E
oklch(55.6% 0.022 231)
-
Step 700
700
#56636B
oklch(49.2% 0.021 234.9)
-
Step 800
800
#465157
oklch(42.8% 0.017 231.6)
-
Step 900
900
#3B4347
oklch(37.7% 0.013 229.2)
-
Step 950
950
#23272A
oklch(27% 0.008 240.2)
#818F97 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) | #8B8E97 | 0.014 |
| Deuteranopia (no green cones) | #888C97 | 0.012 |
| Tritanopia (no blue cones) | #7B9191 | 0.015 |
| Achromatopsia (no color) | #8D8D8D | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818F97
#818F97
oklch(64.1% 0.02 232.7)
- #978981
#978981
oklch(64% 0.021 51.8)
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 #818F97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.026
- Light Slate Gray #778899 ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.032
- Steel #738595 ΔE 0.036
- Warm Grey #978A84 ΔE 0.038
- Cool Gray #8D99AE ΔE 0.043
- Gray #808080 ΔE 0.046
- Steel Grey #6F828A ΔE 0.048
Use #818F97 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.