#66736A
Closest named color: Dim Gray (#696969). oklch(54.2% 0.021 155.4), rgb(102, 115, 106).
Aa
White text reads best on this color (4.96:1).
About this color
#66736A is a medium-dark close to neutral grey. In OKLCH its lightness is 54%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.030 away. White text reads best on it, at 4.96:1.
| Hue family | Neutrals |
| Lightness | medium-dark (54%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 4.22:1 |
| White text | 4.96:1 |
Values
| HEX | #66736A |
| RGB | rgb(102, 115, 106) |
| HSL | hsl(138, 6%, 43%) |
| OKLCH | oklch(54.2% 0.021 155.4) |
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 #66736A | 4.96:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #66736A | 4.22:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #66736A text on white | 4.96:1 | AA | Lc 74.4 | Content text, not long reading |
| #66736A text on black | 4.22:1 | AA large text | Lc -27.3 | 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
#D6DAD7
oklch(88.4% 0.006 153.8)
-
Step 300
300
#BCC2BE
oklch(80.8% 0.009 157)
-
Step 400
400
#9AA39D
oklch(70.6% 0.013 156.9)
-
Step 500
500
#818D84
oklch(63.1% 0.019 153.3)
-
Step 600
600 (this color)
#66736A
oklch(54.2% 0.021 155.4)
-
Step 700
700
#58645C
oklch(49% 0.019 156.4)
-
Step 800
800
#48524B
oklch(42.7% 0.017 155.1)
-
Step 900
900
#3D443F
oklch(37.8% 0.012 154.7)
-
Step 950
950
#232825
oklch(27.1% 0.009 159.4)
#66736A 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) | #73716A | 0.019 |
| Deuteranopia (no green cones) | #706F6A | 0.018 |
| Tritanopia (no blue cones) | #647370 | 0.009 |
| Achromatopsia (no color) | #707070 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66736A
#66736A
oklch(54.2% 0.021 155.4)
- #776B74
#776B74
oklch(54.2% 0.02 334.5)
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 #66736A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.030
- Battleship Gray #6C757D ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.044
- Grey Brown #7F7053 ΔE 0.045
- Dark Taupe #7F684E ΔE 0.052
- Grey Blue #647D8E ΔE 0.054
- Medium Grey #7D7F7C ΔE 0.054
- Slate #516572 ΔE 0.058
Use #66736A 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.