#66697E
Closest named color: Dim Gray (#696969). oklch(52.6% 0.033 278.8), rgb(102, 105, 126).
Aa
White text reads best on this color (5.40:1).
About this color
#66697E is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.033 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.034 away. White text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #66697E |
| RGB | rgb(102, 105, 126) |
| HSL | hsl(233, 11%, 45%) |
| OKLCH | oklch(52.6% 0.033 278.8) |
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 #66697E | 5.40:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #66697E | 3.88:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #66697E text on white | 5.40:1 | AA | Lc 76.9 | Fine for body text |
| #66697E text on black | 3.88:1 | AA large text | Lc -24.8 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D8D9DF
oklch(88.6% 0.008 278.6)
-
Step 300
300
#BEC0CA
oklch(80.9% 0.014 277)
-
Step 400
400
#9D9FB0
oklch(70.6% 0.025 280.4)
-
Step 500
500
#85889C
oklch(63.1% 0.03 278.7)
-
Step 600
600 (this color)
#66697E
oklch(52.6% 0.033 278.8)
-
Step 700
700
#5C5F72
oklch(49% 0.031 278.1)
-
Step 800
800
#4C4E5D
oklch(42.8% 0.025 279.3)
-
Step 900
900
#3F414C
oklch(37.8% 0.019 277.3)
-
Step 950
950
#25262D
oklch(27.1% 0.013 279.1)
#66697E 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) | #646B7F | 0.006 |
| Deuteranopia (no green cones) | #62697D | 0.006 |
| Tritanopia (no blue cones) | #616D70 | 0.030 |
| Achromatopsia (no color) | #6A6A6A | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66697E
#66697E
oklch(52.6% 0.033 278.8)
- #6F6B55
#6F6B55
oklch(52.5% 0.033 98.8)
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 #66697E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.034
- Battleship Gray #6C757D ΔE 0.038
- Slate #516572 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.041
- Grey Purple #826D8C ΔE 0.051
- Battleship Grey #6B7C85 ΔE 0.056
- Dusty Purple #825F87 ΔE 0.056
- Purple Grey #866F85 ΔE 0.056
Use #66697E 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.