#445D66
Closest named color: YInMn Blue (#415A77). oklch(46.2% 0.033 222.1), rgb(68, 93, 102).
Aa
White text reads best on this color (6.99:1).
About this color
#445D66 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.033 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.033 away. White text reads best on it, at 6.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #445D66 |
| RGB | rgb(68, 93, 102) |
| HSL | hsl(196, 20%, 33%) |
| OKLCH | oklch(46.2% 0.033 222.1) |
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 #445D66 | 6.99:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #445D66 | 3.00:1 | AA large text | Lc 19.8 | Dividers and decoration only |
| #445D66 text on white | 6.99:1 | AA | Lc 84.2 | Fine for body text |
| #445D66 text on black | 3.00:1 | AA large text | Lc -17.8 | 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 700.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEC
oklch(93.7% 0.005 214.3)
-
Step 200
200
#D3DADD
oklch(88.4% 0.009 225.1)
-
Step 300
300
#B6C3C8
oklch(80.9% 0.016 222.7)
-
Step 400
400
#90A5AC
oklch(70.8% 0.026 219.8)
-
Step 500
500
#748E98
oklch(63% 0.033 223.2)
-
Step 600
600
#5D7883
oklch(55.6% 0.036 224.7)
-
Step 700
700 (this color)
#445D66
oklch(46.2% 0.033 222.1)
-
Step 800
800
#3F535A
oklch(42.8% 0.027 221.3)
-
Step 900
900
#35444A
oklch(37.6% 0.022 224.2)
-
Step 950
950
#1F282B
oklch(26.9% 0.014 220.1)
#445D66 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) | #585C67 | 0.028 |
| Deuteranopia (no green cones) | #525766 | 0.026 |
| Tritanopia (no blue cones) | #396060 | 0.021 |
| Achromatopsia (no color) | #595959 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445D66
#445D66
oklch(46.2% 0.033 222.1)
- #69534A
#69534A
oklch(46.2% 0.033 43.4)
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 #445D66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.033
- Slate #516572 ΔE 0.035
- Dusty Grape #545775 ΔE 0.042
- Petrol #005F6A ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.052
- Dark Aqua #05696B ΔE 0.052
- Denim #3B638C ΔE 0.060
- Dusk #4E5481 ΔE 0.061
Use #445D66 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.