#40664A
Closest named color: Dark Green Blue (#1F6357). oklch(47.3% 0.063 151.8), rgb(64, 102, 74).
Aa
White text reads best on this color (6.52:1).
About this color
#40664A is a medium-dark, muted green. In OKLCH its lightness is 47%, its chroma 0.063 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.038 away. White text reads best on it, at 6.52:1.
| Hue family | Greens |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.063) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.21:1 |
| White text | 6.52:1 |
Values
| HEX | #40664A |
| RGB | rgb(64, 102, 74) |
| HSL | hsl(136, 23%, 33%) |
| OKLCH | oklch(47.3% 0.063 151.8) |
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 #40664A | 6.52:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #40664A | 3.21:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #40664A text on white | 6.52:1 | AA | Lc 82.3 | Fine for body text |
| #40664A text on black | 3.21:1 | AA large text | Lc -19.6 | 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 700.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE7
oklch(93.7% 0.009 150.7)
-
Step 200
200
#D1DCD4
oklch(88.4% 0.016 154.4)
-
Step 300
300
#B3C7B7
oklch(81% 0.031 151.4)
-
Step 400
400
#8BAA92
oklch(70.8% 0.049 151.8)
-
Step 500
500
#6D9577
oklch(63.2% 0.063 152)
-
Step 600
600
#557F60
oklch(55.6% 0.067 152)
-
Step 700
700 (this color)
#40664A
oklch(47.3% 0.063 151.8)
-
Step 800
800
#395741
oklch(42.6% 0.051 152.2)
-
Step 900
900
#314837
oklch(37.7% 0.041 152.2)
-
Step 950
950
#1D2A20
oklch(26.9% 0.026 151.5)
#40664A 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) | #666048 | 0.054 |
| Deuteranopia (no green cones) | #605C4C | 0.053 |
| Tritanopia (no blue cones) | #3A655E | 0.032 |
| Achromatopsia (no color) | #5E5E5E | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40664A
#40664A
oklch(47.3% 0.063 151.8)
- #714F6C
#714F6C
oklch(47.5% 0.063 331.7)
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 #40664A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.038
- Camo Green #526525 ΔE 0.047
- Pine #2B5D34 ΔE 0.048
- Dark Olive Green #556B2F ΔE 0.048
- Dark Moss Green #606C38 ΔE 0.053
- Dark Aqua #05696B ΔE 0.057
- Army Green #4B5D16 ΔE 0.057
- Spruce #0A5F38 ΔE 0.058
Use #40664A 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.