#06664F
Closest named color: Dark Green Blue (#1F6357). oklch(45.5% 0.088 170), rgb(6, 102, 79).
Aa
White text reads best on this color (6.95:1).
About this color
#06664F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.088 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.022 away. White text reads best on it, at 6.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.02:1 |
| White text | 6.95:1 |
Values
| HEX | #06664F |
| RGB | rgb(6, 102, 79) |
| HSL | hsl(166, 89%, 21%) |
| OKLCH | oklch(45.5% 0.088 170) |
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 #06664F | 6.95:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #06664F | 3.02:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #06664F text on white | 6.95:1 | AA | Lc 83.6 | Fine for body text |
| #06664F text on black | 3.02:1 | AA large text | Lc -18.4 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8E0D6
oklch(88.6% 0.029 168.7)
-
Step 300
300
#A0CCBB
oklch(80.9% 0.052 169.4)
-
Step 400
400
#69B199
oklch(70.6% 0.081 170.5)
-
Step 500
500
#369E80
oklch(63.1% 0.106 170.2)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800 (this color)
#06664F
oklch(45.5% 0.088 170)
-
Step 900
900
#0D4D3C
oklch(37.7% 0.068 170.2)
-
Step 950
950
#0B2D23
oklch(26.9% 0.044 170.3)
#06664F 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) | #635E4E | 0.090 |
| Deuteranopia (no green cones) | #585651 | 0.087 |
| Tritanopia (no blue cones) | #00675F | 0.025 |
| Achromatopsia (no color) | #595959 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06664F
#06664F
oklch(45.5% 0.088 170)
- #7B415D
#7B415D
oklch(45.6% 0.088 350.8)
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 #06664F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.022
- Spruce #0A5F38 ΔE 0.036
- Pine #2B5D34 ΔE 0.041
- Dark Aqua #05696B ΔE 0.044
- Petrol #005F6A ΔE 0.056
- Dark Aquamarine #017371 ΔE 0.059
- Deep Turquoise #017374 ΔE 0.062
- Deep Teal #00555A ΔE 0.065
Use #06664F 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.