#066544
Closest named color: Spruce (#0A5F38). oklch(44.9% 0.096 161.9), rgb(6, 101, 68).
Aa
White text reads best on this color (7.11:1).
About this color
#066544 is a dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.096 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.022 away. White text reads best on it, at 7.11:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #066544 |
| RGB | rgb(6, 101, 68) |
| HSL | hsl(159, 89%, 21%) |
| OKLCH | oklch(44.9% 0.096 161.9) |
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 #066544 | 7.11:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #066544 | 2.95:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #066544 text on white | 7.11:1 | AAA | Lc 84.2 | Fine for body text |
| #066544 text on black | 2.95:1 | Fails | Lc -17.8 | 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
#C8E0D3
oklch(88.5% 0.031 162.1)
-
Step 300
300
#A1CCB6
oklch(80.8% 0.055 162.6)
-
Step 400
400
#6AB28F
oklch(70.6% 0.09 161.8)
-
Step 500
500
#399F74
oklch(63.2% 0.115 162)
-
Step 600
600
#00895D
oklch(55.7% 0.122 162)
-
Step 700
700
#00734D
oklch(49.1% 0.108 161.8)
-
Step 800
800 (this color)
#066544
oklch(44.9% 0.096 161.9)
-
Step 900
900
#0F4E35
oklch(37.8% 0.076 161.7)
-
Step 950
950
#0C2E1F
oklch(27.1% 0.049 161.3)
#066544 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) | #635D42 | 0.092 |
| Deuteranopia (no green cones) | #595546 | 0.090 |
| Tritanopia (no blue cones) | #00655C | 0.038 |
| Achromatopsia (no color) | #585858 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066544
#066544
oklch(44.9% 0.096 161.9)
- #783D64
#783D64
oklch(44.8% 0.097 341.6)
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 #066544, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.022
- Pine #2B5D34 ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Aqua #05696B ΔE 0.061
- Army Green #4B5D16 ΔE 0.065
- Camouflage Green #4B6113 ΔE 0.066
- Deep Green #02590F ΔE 0.066
- Dark Green #006400 ΔE 0.067
Use #066544 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.