#445E57
Closest named color: Dark Green Blue (#1F6357). oklch(45.9% 0.033 176.3), rgb(68, 94, 87).
Aa
White text reads best on this color (7.03:1).
About this color
#445E57 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.033 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.037 away. White text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #445E57 |
| RGB | rgb(68, 94, 87) |
| HSL | hsl(164, 16%, 32%) |
| OKLCH | oklch(45.9% 0.033 176.3) |
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 #445E57 | 7.03:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #445E57 | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #445E57 text on white | 7.03:1 | AAA | Lc 84.4 | Fine for body text |
| #445E57 text on black | 2.98:1 | Fails | Lc -17.6 | 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
#B4C5C0
oklch(80.9% 0.02 176.3)
-
Step 400
400
#8DA7A0
oklch(70.6% 0.031 177.3)
-
Step 500
500
#709289
oklch(63.2% 0.04 176.9)
-
Step 600
600
#587C72
oklch(55.6% 0.044 175.5)
-
Step 700
700
#486860
oklch(49% 0.039 177.3)
-
Step 800
800 (this color)
#445E57
oklch(45.9% 0.033 176.3)
-
Step 900
900
#334641
oklch(37.6% 0.026 176.9)
-
Step 950
950
#1E2926
oklch(26.9% 0.016 176.5)
#445E57 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) | #5C5B57 | 0.035 |
| Deuteranopia (no green cones) | #575758 | 0.034 |
| Tritanopia (no blue cones) | #3D5F5C | 0.010 |
| Achromatopsia (no color) | #595959 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445E57
#445E57
oklch(45.9% 0.033 176.3)
- #675058
#675058
oklch(45.8% 0.033 355.7)
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 #445E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.037
- Slate #516572 ΔE 0.049
- Dark Aqua #05696B ΔE 0.052
- Petrol #005F6A ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.057
- YInMn Blue #415A77 ΔE 0.058
- Pine #2B5D34 ΔE 0.065
- Deep Teal #00555A ΔE 0.065
Use #445E57 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.