#40684F
Closest named color: Dark Green Blue (#1F6357). oklch(48% 0.061 155.9), rgb(64, 104, 79).
Aa
White text reads best on this color (6.34:1).
About this color
#40684F is a medium-dark, muted green. In OKLCH its lightness is 48%, its chroma 0.061 and its hue 156°. 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 6.34:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.31:1 |
| White text | 6.34:1 |
Values
| HEX | #40684F |
| RGB | rgb(64, 104, 79) |
| HSL | hsl(143, 24%, 33%) |
| OKLCH | oklch(48% 0.061 155.9) |
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 #40684F | 6.34:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #40684F | 3.31:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #40684F text on white | 6.34:1 | AA | Lc 81.5 | Fine for body text |
| #40684F text on black | 3.31:1 | AA large text | Lc -20.4 | 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
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B2C7B9
oklch(81% 0.03 156.5)
-
Step 400
400
#8AAA94
oklch(70.8% 0.047 155)
-
Step 500
500
#6C957A
oklch(63.2% 0.061 155.4)
-
Step 600
600
#537F63
oklch(55.6% 0.065 155.7)
-
Step 700
700 (this color)
#40684F
oklch(48% 0.061 155.9)
-
Step 800
800
#385743
oklch(42.6% 0.05 155.4)
-
Step 900
900
#304839
oklch(37.7% 0.039 156.5)
-
Step 950
950
#1D2A21
oklch(27% 0.024 154.3)
#40684F 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) | #68624E | 0.056 |
| Deuteranopia (no green cones) | #615E50 | 0.053 |
| Tritanopia (no blue cones) | #386761 | 0.030 |
| Achromatopsia (no color) | #5F5F5F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40684F
#40684F
oklch(48% 0.061 155.9)
- #74506B
#74506B
oklch(48% 0.062 335.9)
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 #40684F, 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
- Dark Olive Green #556B2F ΔE 0.050
- Camo Green #526525 ΔE 0.052
- Dark Aqua #05696B ΔE 0.053
- Dark Moss Green #606C38 ΔE 0.053
- Pine #2B5D34 ΔE 0.055
- Dark Aquamarine #017371 ΔE 0.057
- Deep Turquoise #017374 ΔE 0.060
Use #40684F 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.