#066693
Closest named color: Peacock Blue (#016795). oklch(48.5% 0.105 238), rgb(6, 102, 147).
Aa
White text reads best on this color (6.30:1).
About this color
#066693 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.105 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.004 away. White text reads best on it, at 6.30:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.32:1 |
| White text | 6.30:1 |
Values
| HEX | #066693 |
| RGB | rgb(6, 102, 147) |
| HSL | hsl(199, 92%, 30%) |
| OKLCH | oklch(48.5% 0.105 238) |
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 #066693 | 6.30:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #066693 | 3.32:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #066693 text on white | 6.30:1 | AA | Lc 80.9 | Fine for body text |
| #066693 text on black | 3.32:1 | AA large text | Lc -21.0 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DE
oklch(80.9% 0.051 238.2)
-
Step 400
400
#6FA8CE
oklch(70.7% 0.082 238.7)
-
Step 500
500
#4492C1
oklch(63.1% 0.104 238)
-
Step 600
600
#1D7CAD
oklch(55.7% 0.112 237.4)
-
Step 700
700 (this color)
#066693
oklch(48.5% 0.105 238)
-
Step 800
800
#105579
oklch(42.7% 0.087 237.9)
-
Step 900
900
#184661
oklch(37.6% 0.068 238.2)
-
Step 950
950
#102939
oklch(26.9% 0.043 239.2)
#066693 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) | #506695 | 0.057 |
| Deuteranopia (no green cones) | #3E5B92 | 0.044 |
| Tritanopia (no blue cones) | #007176 | 0.066 |
| Achromatopsia (no color) | #606060 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #066693
#066693
oklch(48.5% 0.105 238)
- #8A4D15
#8A4D15
oklch(48.4% 0.105 57.6)
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 #066693, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.004
- Denim #3B638C ΔE 0.032
- Ocean Blue #03719C ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.042
- Sea Blue #047495 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.048
- Muted Blue #3B719F ΔE 0.051
Use #066693 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.