#066441
Closest named color: Spruce (#0A5F38). oklch(44.5% 0.098 160.4), rgb(6, 100, 65).
Aa
White text reads best on this color (7.22:1).
About this color
#066441 is a dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.098 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.018 away. White text reads best on it, at 7.22:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #066441 |
| RGB | rgb(6, 100, 65) |
| HSL | hsl(158, 89%, 21%) |
| OKLCH | oklch(44.5% 0.098 160.4) |
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 #066441 | 7.22:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #066441 | 2.90:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #066441 text on white | 7.22:1 | AAA | Lc 84.6 | Fine for body text |
| #066441 text on black | 2.90:1 | Fails | Lc -17.4 | 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 800.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE6
oklch(93.5% 0.016 160.6)
-
Step 200
200
#C8E0D2
oklch(88.5% 0.032 160.1)
-
Step 300
300
#A1CDB4
oklch(81% 0.058 159.9)
-
Step 400
400
#6AB28D
oklch(70.6% 0.091 160.4)
-
Step 500
500
#3A9F71
oklch(63.1% 0.117 160.2)
-
Step 600
600
#00895A
oklch(55.6% 0.125 160.5)
-
Step 700
700
#00734B
oklch(49% 0.11 160.6)
-
Step 800
800 (this color)
#066441
oklch(44.5% 0.098 160.4)
-
Step 900
900
#104E34
oklch(37.8% 0.076 160.6)
-
Step 950
950
#0C2E1E
oklch(27.1% 0.05 159.8)
#066441 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) | #635B3F | 0.093 |
| Deuteranopia (no green cones) | #585443 | 0.089 |
| Tritanopia (no blue cones) | #00645B | 0.041 |
| Achromatopsia (no color) | #575757 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066441
#066441
oklch(44.5% 0.098 160.4)
- #773C64
#773C64
oklch(44.5% 0.098 340.8)
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 #066441, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.018
- Pine #2B5D34 ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.040
- Deep Green #02590F ΔE 0.061
- Army Green #4B5D16 ΔE 0.063
- Dark Green #006400 ΔE 0.063
- Camouflage Green #4B6113 ΔE 0.064
- Dark Aqua #05696B ΔE 0.065
Use #066441 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.