#445E51
Closest named color: Dark Green Blue (#1F6357). oklch(45.7% 0.038 162.7), rgb(68, 94, 81).
Aa
White text reads best on this color (7.08:1).
About this color
#445E51 is a medium-dark, muted green. In OKLCH its lightness is 46%, its chroma 0.038 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.036 away. White text reads best on it, at 7.08:1.
| Hue family | Greens |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.96:1 |
| White text | 7.08:1 |
Values
| HEX | #445E51 |
| RGB | rgb(68, 94, 81) |
| HSL | hsl(150, 16%, 32%) |
| OKLCH | oklch(45.7% 0.038 162.7) |
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 #445E51 | 7.08:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #445E51 | 2.96:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #445E51 text on white | 7.08:1 | AAA | Lc 84.5 | Fine for body text |
| #445E51 text on black | 2.96:1 | Fails | Lc -17.5 | 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 800.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B5C5BC
oklch(80.9% 0.021 161.3)
-
Step 400
400
#8EA89A
oklch(70.8% 0.035 161.9)
-
Step 500
500
#719282
oklch(63% 0.044 163.9)
-
Step 600
600
#597D6B
oklch(55.7% 0.05 162.5)
-
Step 700
700
#496959
oklch(49.1% 0.045 162.4)
-
Step 800
800 (this color)
#445E51
oklch(45.7% 0.038 162.7)
-
Step 900
900
#33473D
oklch(37.8% 0.03 162.8)
-
Step 950
950
#1E2924
oklch(26.9% 0.018 165.6)
#445E51 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) | #5D5A50 | 0.037 |
| Deuteranopia (no green cones) | #595752 | 0.036 |
| Tritanopia (no blue cones) | #3F5E5A | 0.015 |
| Achromatopsia (no color) | #585858 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445E51
#445E51
oklch(45.7% 0.038 162.7)
- #674F5D
#674F5D
oklch(45.7% 0.038 342.9)
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 #445E51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Aqua #05696B ΔE 0.055
- Pine #2B5D34 ΔE 0.056
- Slate #516572 ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.058
- Petrol #005F6A ΔE 0.058
- Deep Teal #00555A ΔE 0.067
- Spruce #0A5F38 ΔE 0.068
Use #445E51 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.