#066264
Closest named color: Petrol (#005F6A). oklch(45.1% 0.075 197.3), rgb(6, 98, 100).
Aa
White text reads best on this color (7.14:1).
About this color
#066264 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.075 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.016 away. White text reads best on it, at 7.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #066264 |
| RGB | rgb(6, 98, 100) |
| HSL | hsl(181, 89%, 21%) |
| OKLCH | oklch(45.1% 0.075 197.3) |
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 #066264 | 7.14:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #066264 | 2.93:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #066264 text on white | 7.14:1 | AAA | Lc 84.3 | Fine for body text |
| #066264 text on black | 2.93:1 | Fails | Lc -17.6 | 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 800.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1EDED
oklch(93.7% 0.013 196.9)
-
Step 200
200
#C8DEDF
oklch(88.5% 0.024 200.1)
-
Step 300
300
#A0CACA
oklch(80.9% 0.044 196.3)
-
Step 400
400
#69AEB0
oklch(70.6% 0.07 198.1)
-
Step 500
500
#389A9C
oklch(63.1% 0.089 197)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800 (this color)
#066264
oklch(45.1% 0.075 197.3)
-
Step 900
900
#0E4B4C
oklch(37.7% 0.059 196.6)
-
Step 950
950
#0C2C2D
oklch(27% 0.037 198.1)
#066264 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) | #5A5D64 | 0.077 |
| Deuteranopia (no green cones) | #4E5464 | 0.072 |
| Tritanopia (no blue cones) | #006662 | 0.014 |
| Achromatopsia (no color) | #585858 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066264
#066264
oklch(45.1% 0.075 197.3)
- #7A4346
#7A4346
oklch(45.1% 0.076 17.1)
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 #066264, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.016
- Dark Aqua #05696B ΔE 0.023
- Dark Green Blue #1F6357 ΔE 0.024
- Deep Teal #00555A ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.053
- Deep Turquoise #017374 ΔE 0.054
- Dark Blue Green #005249 ΔE 0.060
- Dark Slate Gray #2F4F4F ΔE 0.061
Use #066264 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.