#445E5B
Closest named color: Dark Green Blue (#1F6357). oklch(46% 0.031 187.3), rgb(68, 94, 91).
Aa
White text reads best on this color (7.00:1).
About this color
#445E5B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.031 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.040 away. White text reads best on it, at 7.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #445E5B |
| RGB | rgb(68, 94, 91) |
| HSL | hsl(173, 16%, 32%) |
| OKLCH | oklch(46% 0.031 187.3) |
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 #445E5B | 7.00:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #445E5B | 2.99:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #445E5B text on white | 7.00:1 | AAA | Lc 84.2 | Fine for body text |
| #445E5B text on black | 2.99:1 | Fails | Lc -17.7 | 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
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBDA
oklch(88.5% 0.009 188.1)
-
Step 300
300
#B6C4C2
oklch(80.9% 0.016 186.6)
-
Step 400
400
#90A6A3
oklch(70.7% 0.025 186.6)
-
Step 500
500
#75908D
oklch(63.2% 0.031 188.1)
-
Step 600
600
#5D7A77
oklch(55.6% 0.034 188.4)
-
Step 700
700 (this color)
#445E5B
oklch(46% 0.031 187.3)
-
Step 800
800
#3F5451
oklch(42.7% 0.026 185.5)
-
Step 900
900
#364543
oklch(37.7% 0.02 186.4)
-
Step 950
950
#202927
oklch(27.2% 0.013 180.3)
#445E5B 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) | #5B5B5B | 0.033 |
| Deuteranopia (no green cones) | #56575B | 0.032 |
| Tritanopia (no blue cones) | #3C5F5D | 0.010 |
| Achromatopsia (no color) | #595959 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445E5B
#445E5B
oklch(46% 0.031 187.3)
- #685155
#685155
oklch(46% 0.031 6.7)
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 #445E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.040
- Slate #516572 ΔE 0.044
- Dark Aqua #05696B ΔE 0.050
- Petrol #005F6A ΔE 0.051
- YInMn Blue #415A77 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.058
- Dusty Grape #545775 ΔE 0.059
- Deep Teal #00555A ΔE 0.065
Use #445E5B 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.