#445D57
Closest named color: Dark Green Blue (#1F6357). oklch(45.6% 0.032 178.4), rgb(68, 93, 87).
Aa
White text reads best on this color (7.12:1).
About this color
#445D57 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.032 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.039 away. White text reads best on it, at 7.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.94:1 |
| White text | 7.12:1 |
Values
| HEX | #445D57 |
| RGB | rgb(68, 93, 87) |
| HSL | hsl(166, 16%, 32%) |
| OKLCH | oklch(45.6% 0.032 178.4) |
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 #445D57 | 7.12:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #445D57 | 2.94:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #445D57 text on white | 7.12:1 | AAA | Lc 84.7 | Fine for body text |
| #445D57 text on black | 2.94:1 | Fails | Lc -17.3 | 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 800.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DBD9
oklch(88.4% 0.01 181.4)
-
Step 300
300
#B5C5C0
oklch(81% 0.019 175.2)
-
Step 400
400
#8EA7A1
oklch(70.7% 0.029 179.3)
-
Step 500
500
#719189
oklch(63% 0.038 178)
-
Step 600
600
#597C73
oklch(55.7% 0.042 177)
-
Step 700
700
#496861
oklch(49.1% 0.038 179.1)
-
Step 800
800 (this color)
#445D57
oklch(45.6% 0.032 178.4)
-
Step 900
900
#344642
oklch(37.7% 0.024 179.8)
-
Step 950
950
#1E2926
oklch(26.9% 0.016 176.5)
#445D57 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) | #5B5A57 | 0.034 |
| Deuteranopia (no green cones) | #565757 | 0.030 |
| Tritanopia (no blue cones) | #3D5E5B | 0.010 |
| Achromatopsia (no color) | #585858 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445D57
#445D57
oklch(45.6% 0.032 178.4)
- #665057
#665057
oklch(45.6% 0.031 357.4)
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 #445D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.039
- Slate #516572 ΔE 0.050
- Petrol #005F6A ΔE 0.053
- Dark Aqua #05696B ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.055
- YInMn Blue #415A77 ΔE 0.057
- Deep Teal #00555A ΔE 0.063
- Dusty Grape #545775 ΔE 0.064
Use #445D57 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.