#066647
Closest named color: Spruce (#0A5F38). oklch(45.3% 0.095 163.6), rgb(6, 102, 71).
Aa
White text reads best on this color (7.00:1).
About this color
#066647 is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.095 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.027 away. White text reads best on it, at 7.00:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #066647 |
| RGB | rgb(6, 102, 71) |
| HSL | hsl(161, 89%, 21%) |
| OKLCH | oklch(45.3% 0.095 163.6) |
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 #066647 | 7.00:1 | AAA | Lc -88.7 | Fine for body text |
| Black text on #066647 | 2.99:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #066647 text on white | 7.00:1 | AAA | Lc 83.8 | Fine for body text |
| #066647 text on black | 2.99:1 | Fails | Lc -18.2 | 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
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C8E0D3
oklch(88.5% 0.031 162.1)
-
Step 300
300
#A0CCB7
oklch(80.8% 0.055 164.4)
-
Step 400
400
#69B291
oklch(70.6% 0.089 163.5)
-
Step 500
500
#379F76
oklch(63.2% 0.114 163.4)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800 (this color)
#066647
oklch(45.3% 0.095 163.6)
-
Step 900
900
#0E4E36
oklch(37.8% 0.075 162.8)
-
Step 950
950
#0C2E20
oklch(27.2% 0.047 162.9)
#066647 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) | #645E45 | 0.092 |
| Deuteranopia (no green cones) | #595649 | 0.089 |
| Tritanopia (no blue cones) | #00665E | 0.037 |
| Achromatopsia (no color) | #595959 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066647
#066647
oklch(45.3% 0.095 163.6)
- #7A3F63
#7A3F63
oklch(45.4% 0.094 344.1)
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 #066647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.033
- Pine #2B5D34 ΔE 0.033
- Dark Aqua #05696B ΔE 0.056
- Army Green #4B5D16 ΔE 0.067
- Camouflage Green #4B6113 ΔE 0.067
- Dark Aquamarine #017371 ΔE 0.068
- Camo Green #526525 ΔE 0.068
Use #066647 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.