#066787
Closest named color: Peacock Blue (#016795). oklch(48.1% 0.093 228.7), rgb(6, 103, 135).
Aa
White text reads best on this color (6.36:1).
About this color
#066787 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.093 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.023 away. White text reads best on it, at 6.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.29:1 |
| White text | 6.36:1 |
Values
| HEX | #066787 |
| RGB | rgb(6, 103, 135) |
| HSL | hsl(195, 91%, 28%) |
| OKLCH | oklch(48.1% 0.093 228.7) |
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 #066787 | 6.36:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #066787 | 3.29:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #066787 text on white | 6.36:1 | AA | Lc 81.2 | Fine for body text |
| #066787 text on black | 3.29:1 | AA large text | Lc -20.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A3C7D8
oklch(80.9% 0.045 228.2)
-
Step 400
400
#70AAC4
oklch(70.8% 0.071 228)
-
Step 500
500
#4594B5
oklch(63.1% 0.092 228.2)
-
Step 600
600
#1F7EA1
oklch(55.6% 0.099 228.2)
-
Step 700
700 (this color)
#066787
oklch(48.1% 0.093 228.7)
-
Step 800
800
#125770
oklch(42.8% 0.076 227.9)
-
Step 900
900
#19475B
oklch(37.6% 0.06 230.1)
-
Step 950
950
#102A35
oklch(27% 0.038 228.2)
#066787 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) | #566589 | 0.065 |
| Deuteranopia (no green cones) | #475A87 | 0.057 |
| Tritanopia (no blue cones) | #007072 | 0.051 |
| Achromatopsia (no color) | #5F5F5F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066787
#066787
oklch(48.1% 0.093 228.7)
- #874C2B
#874C2B
oklch(48% 0.093 48.5)
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 #066787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.023
- Denim #3B638C ΔE 0.036
- Ocean Blue #03719C ΔE 0.040
- Sea Blue #047495 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.042
- Dark Aqua #05696B ΔE 0.049
- Petrol #005F6A ΔE 0.050
- YInMn Blue #415A77 ΔE 0.051
Use #066787 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.