#616E66
Closest named color: Dim Gray (#696969). oklch(52.5% 0.02 158.6), rgb(97, 110, 102).
Aa
White text reads best on this color (5.34:1).
About this color
#616E66 is a medium-dark close to neutral grey. In OKLCH its lightness is 52%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.020 away. White text reads best on it, at 5.34:1.
| Hue family | Neutrals |
| Lightness | medium-dark (52%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.93:1 |
| White text | 5.34:1 |
Values
| HEX | #616E66 |
| RGB | rgb(97, 110, 102) |
| HSL | hsl(143, 6%, 41%) |
| OKLCH | oklch(52.5% 0.02 158.6) |
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 #616E66 | 5.34:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #616E66 | 3.93:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #616E66 text on white | 5.34:1 | AA | Lc 76.6 | Fine for body text |
| #616E66 text on black | 3.93:1 | AA large text | Lc -25.1 | Dividers and decoration only |
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 600.
-
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
#BCC2BE
oklch(80.8% 0.009 157)
-
Step 400
400
#99A39D
oklch(70.6% 0.014 159.8)
-
Step 500
500
#818D85
oklch(63.1% 0.018 156.7)
-
Step 600
600 (this color)
#616E66
oklch(52.5% 0.02 158.6)
-
Step 700
700
#58645D
oklch(49.1% 0.018 160.1)
-
Step 800
800
#48524C
oklch(42.8% 0.016 159.3)
-
Step 900
900
#3C443F
oklch(37.8% 0.013 158.3)
-
Step 950
950
#232825
oklch(27.1% 0.009 159.4)
#616E66 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) | #6E6C66 | 0.020 |
| Deuteranopia (no green cones) | #6B6A66 | 0.018 |
| Tritanopia (no blue cones) | #5F6E6C | 0.010 |
| Achromatopsia (no color) | #6B6B6B | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616E66
#616E66
oklch(52.5% 0.02 158.6)
- #73666E
#73666E
oklch(52.5% 0.02 340.4)
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 #616E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.020
- Battleship Gray #6C757D ΔE 0.041
- Slate #516572 ΔE 0.045
- Dark Taupe #7F684E ΔE 0.052
- Grey Brown #7F7053 ΔE 0.053
- Battleship Grey #6B7C85 ΔE 0.057
- Metallic Blue #4F738E ΔE 0.062
- Dark Moss Green #606C38 ΔE 0.064
Use #616E66 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.