#066243
Closest named color: Spruce (#0A5F38). oklch(44% 0.093 162.7), rgb(6, 98, 67).
Aa
White text reads best on this color (7.40:1).
About this color
#066243 is a dark, moderately saturated green. In OKLCH its lightness is 44%, its chroma 0.093 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.016 away. White text reads best on it, at 7.40:1.
| Hue family | Greens |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #066243 |
| RGB | rgb(6, 98, 67) |
| HSL | hsl(160, 88%, 20%) |
| OKLCH | oklch(44% 0.093 162.7) |
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 #066243 | 7.40:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #066243 | 2.83:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #066243 text on white | 7.40:1 | AAA | Lc 85.3 | Fine for body text |
| #066243 text on black | 2.83:1 | Fails | Lc -16.8 | 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
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C8E0D3
oklch(88.5% 0.031 162.1)
-
Step 300
300
#A2CCB6
oklch(80.9% 0.054 162.1)
-
Step 400
400
#6BB291
oklch(70.7% 0.087 163)
-
Step 500
500
#3C9E75
oklch(63% 0.111 162.5)
-
Step 600
600
#00895E
oklch(55.7% 0.121 162.5)
-
Step 700
700
#00734F
oklch(49.1% 0.106 163)
-
Step 800
800 (this color)
#066243
oklch(44% 0.093 162.7)
-
Step 900
900
#114D36
oklch(37.6% 0.072 163)
-
Step 950
950
#0D2D20
oklch(26.9% 0.045 163.7)
#066243 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) | #605A41 | 0.090 |
| Deuteranopia (no green cones) | #565245 | 0.088 |
| Tritanopia (no blue cones) | #00625A | 0.037 |
| Achromatopsia (no color) | #555555 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066243
#066243
oklch(44% 0.093 162.7)
- #753C60
#753C60
oklch(44% 0.093 343)
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 #066243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.016
- Pine #2B5D34 ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.035
- Dark Blue Green #005249 ΔE 0.058
- Deep Green #02590F ΔE 0.062
- Dark Aqua #05696B ΔE 0.062
- Army Green #4B5D16 ΔE 0.065
- Navy Green #35530A ΔE 0.066
Use #066243 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.