#818B94
Closest named color: Light Slate Gray (#778899). oklch(63.2% 0.018 245.2), rgb(129, 139, 148).
Aa
Black text reads best on this color (6.05:1).
About this color
#818B94 is a medium-light close to neutral grey. In OKLCH its lightness is 63%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Light Slate Gray (#778899), ΔE 0.019 away. Black text reads best on it, at 6.05:1.
| Hue family | Neutrals |
| Lightness | medium-light (63%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #818B94 |
| RGB | rgb(129, 139, 148) |
| HSL | hsl(208, 8%, 54%) |
| OKLCH | oklch(63.2% 0.018 245.2) |
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 #818B94 | 3.46:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #818B94 | 6.05:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #818B94 text on white | 3.46:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #818B94 text on black | 6.05:1 | AA | Lc -39.4 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6D9DC
oklch(88.4% 0.005 247.9)
-
Step 300
300
#BCC1C6
oklch(80.8% 0.009 247.9)
-
Step 400
400
#9AA2A9
oklch(70.8% 0.014 244.3)
-
Step 500
500 (this color)
#818B94
oklch(63.2% 0.018 245.2)
-
Step 600
600
#6A757E
oklch(55.6% 0.019 242.7)
-
Step 700
700
#58626B
oklch(49.1% 0.019 245.3)
-
Step 800
800
#485057
oklch(42.7% 0.016 244.5)
-
Step 900
900
#3D4248
oklch(37.7% 0.012 253)
-
Step 950
950
#24272A
oklch(27.1% 0.007 248.1)
#818B94 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) | #888B94 | 0.010 |
| Deuteranopia (no green cones) | #858994 | 0.008 |
| Tritanopia (no blue cones) | #7C8D8E | 0.014 |
| Achromatopsia (no color) | #8A8A8A | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818B94
#818B94
oklch(63.2% 0.018 245.2)
- #91887F
#91887F
oklch(63.2% 0.017 67.5)
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 #818B94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.019
- Blue Grey #758DA3 ΔE 0.025
- Steel #738595 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.032
- Gray #808080 ΔE 0.036
- Warm Grey #978A84 ΔE 0.037
- Steel Grey #6F828A ΔE 0.039
- Lavender Gray #7E7F9A ΔE 0.039
Use #818B94 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.