#818E88
Closest named color: Warm Grey (#978A84). oklch(63.4% 0.017 166.4), rgb(129, 142, 136).
Aa
Black text reads best on this color (6.15:1).
About this color
#818E88 is a medium-light close to neutral grey. In OKLCH its lightness is 63%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Warm Grey (#978A84), ΔE 0.032 away. Black text reads best on it, at 6.15:1.
| Hue family | Neutrals |
| Lightness | medium-light (63%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Warm Grey (#978A84) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #818E88 |
| RGB | rgb(129, 142, 136) |
| HSL | hsl(152, 5%, 53%) |
| OKLCH | oklch(63.4% 0.017 166.4) |
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 #818E88 | 3.41:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #818E88 | 6.15:1 | AA | Lc 42.4 | Non-text elements, placeholder text |
| #818E88 text on white | 3.41:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #818E88 text on black | 6.15:1 | AA | Lc -40.1 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE9
oklch(93.5% 0.003 165.1)
-
Step 200
200
#D6DAD8
oklch(88.5% 0.005 165)
-
Step 300
300
#BCC2BF
oklch(80.8% 0.008 164.9)
-
Step 400
400
#99A39F
oklch(70.6% 0.013 170.1)
-
Step 500
500 (this color)
#818E88
oklch(63.4% 0.017 166.4)
-
Step 600
600
#697771
oklch(55.6% 0.019 168)
-
Step 700
700
#58645E
oklch(49.1% 0.018 164.2)
-
Step 800
800
#48524D
oklch(42.8% 0.015 164.2)
-
Step 900
900
#3C4440
oklch(37.8% 0.012 164.2)
-
Step 950
950
#232826
oklch(27.1% 0.008 169.8)
#818E88 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) | #8D8C88 | 0.017 |
| Deuteranopia (no green cones) | #8B8A88 | 0.017 |
| Tritanopia (no blue cones) | #7F8E8C | 0.006 |
| Achromatopsia (no color) | #8B8B8B | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818E88
#818E88
oklch(63.4% 0.017 166.4)
- #93868D
#93868D
oklch(63.4% 0.019 343.9)
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 #818E88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Grey #978A84 ΔE 0.032
- Light Slate Gray #778899 ΔE 0.038
- Gray #808080 ΔE 0.039
- Medium Grey #7D7F7C ΔE 0.043
- Steel #738595 ΔE 0.043
- Blue Grey #758DA3 ΔE 0.044
- Green Grey #77926F ΔE 0.045
- Brown Grey #8D8468 ΔE 0.045
Use #818E88 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.