#066F53
Closest named color: Dark Green Blue (#1F6357). oklch(48.2% 0.096 167.5), rgb(6, 111, 83).
Aa
White text reads best on this color (6.16:1).
About this color
#066F53 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.096 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.042 away. White text reads best on it, at 6.16:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #066F53 |
| RGB | rgb(6, 111, 83) |
| HSL | hsl(164, 90%, 23%) |
| OKLCH | oklch(48.2% 0.096 167.5) |
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 #066F53 | 6.16:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #066F53 | 3.40:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #066F53 text on white | 6.16:1 | AA | Lc 80.3 | Fine for body text |
| #066F53 text on black | 3.40:1 | AA large text | Lc -21.6 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A4CBBB
oklch(80.9% 0.047 168.3)
-
Step 400
400
#71B097
oklch(70.7% 0.075 167.3)
-
Step 500
500
#479C7E
oklch(63.1% 0.095 167.5)
-
Step 600
600
#1F8667
oklch(55.5% 0.103 167.7)
-
Step 700
700 (this color)
#066F53
oklch(48.2% 0.096 167.5)
-
Step 800
800
#125D46
oklch(42.8% 0.08 167.2)
-
Step 900
900
#194C3B
oklch(37.7% 0.062 167.8)
-
Step 950
950
#102D23
oklch(27.1% 0.04 168.2)
#066F53 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) | #6C6652 | 0.097 |
| Deuteranopia (no green cones) | #605E55 | 0.093 |
| Tritanopia (no blue cones) | #007067 | 0.031 |
| Achromatopsia (no color) | #616161 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066F53
#066F53
oklch(48.2% 0.096 167.5)
- #854668
#854668
oklch(48.2% 0.096 347.7)
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 #066F53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.046
- Dark Aqua #05696B ΔE 0.049
- Deep Turquoise #017374 ΔE 0.051
- Spruce #0A5F38 ΔE 0.056
- Pine #2B5D34 ΔE 0.060
- Bluegreen #017A79 ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.067
Use #066F53 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.