#406D5F
Closest named color: Dark Aquamarine (#017371). oklch(49.8% 0.055 172.1), rgb(64, 109, 95).
Aa
White text reads best on this color (5.88:1).
About this color
#406D5F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.055 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.040 away. White text reads best on it, at 5.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.57:1 |
| White text | 5.88:1 |
Values
| HEX | #406D5F |
| RGB | rgb(64, 109, 95) |
| HSL | hsl(161, 26%, 34%) |
| OKLCH | oklch(49.8% 0.055 172.1) |
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 #406D5F | 5.88:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #406D5F | 3.57:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #406D5F text on white | 5.88:1 | AA | Lc 79.3 | Fine for body text |
| #406D5F text on black | 3.57:1 | AA large text | Lc -22.5 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B0C7BF
oklch(81% 0.027 172.7)
-
Step 400
400
#86AA9E
oklch(70.8% 0.043 172.7)
-
Step 500
500
#679586
oklch(63.2% 0.055 172.2)
-
Step 600
600
#4D7F6F
oklch(55.6% 0.06 171.7)
-
Step 700
700 (this color)
#406D5F
oklch(49.8% 0.055 172.1)
-
Step 800
800
#34574C
oklch(42.6% 0.045 172.1)
-
Step 900
900
#2E483F
oklch(37.8% 0.036 170.7)
-
Step 950
950
#1B2A25
oklch(27% 0.022 171.9)
#406D5F 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) | #6A685E | 0.056 |
| Deuteranopia (no green cones) | #636260 | 0.055 |
| Tritanopia (no blue cones) | #326E69 | 0.018 |
| Achromatopsia (no color) | #646464 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406D5F
#406D5F
oklch(49.8% 0.055 172.1)
- #7C5666
#7C5666
oklch(49.9% 0.055 352.3)
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 #406D5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.040
- Deep Turquoise #017374 ΔE 0.042
- Dark Aqua #05696B ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.047
- Slate #516572 ΔE 0.050
- Bluegreen #017A79 ΔE 0.051
- Deep Aqua #08787F ΔE 0.054
- Dim Gray #696969 ΔE 0.060
Use #406D5F 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.