#6166A2
Closest named color: French Blue (#436BAD). oklch(53.2% 0.094 279.1), rgb(97, 102, 162).
Aa
White text reads best on this color (5.34:1).
About this color
#6166A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.094 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.040 away. White text reads best on it, at 5.34:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.93:1 |
| White text | 5.34:1 |
Values
| HEX | #6166A2 |
| RGB | rgb(97, 102, 162) |
| HSL | hsl(235, 26%, 51%) |
| OKLCH | oklch(53.2% 0.094 279.1) |
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 #6166A2 | 5.34:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #6166A2 | 3.93:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #6166A2 text on white | 5.34:1 | AA | Lc 76.5 | Fine for body text |
| #6166A2 text on black | 3.93:1 | AA large text | Lc -25.2 | 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 600.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#BABEDC
oklch(80.8% 0.042 279.4)
-
Step 400
400
#979DCB
oklch(70.8% 0.067 278.7)
-
Step 500
500
#7E84BD
oklch(63.1% 0.086 279)
-
Step 600
600 (this color)
#6166A2
oklch(53.2% 0.094 279.1)
-
Step 700
700
#565B91
oklch(49.1% 0.086 278.7)
-
Step 800
800
#474A76
oklch(42.7% 0.073 279.9)
-
Step 900
900
#3B3E5F
oklch(37.6% 0.056 279.3)
-
Step 950
950
#232538
oklch(27.2% 0.035 279.1)
#6166A2 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) | #526DA4 | 0.026 |
| Deuteranopia (no green cones) | #4E69A1 | 0.026 |
| Tritanopia (no blue cones) | #4E727C | 0.083 |
| Achromatopsia (no color) | #6B6B6B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6166A2
#6166A2
oklch(53.2% 0.094 279.1)
- #7A6D23
#7A6D23
oklch(53.2% 0.094 99.2)
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 #6166A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.040
- Dusky Blue #475F94 ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.052
- Muted Blue #3B719F ΔE 0.053
- Dull Blue #49759C ΔE 0.053
- Dark Lavender #856798 ΔE 0.059
- Metallic Blue #4F738E ΔE 0.060
- Denim #3B638C ΔE 0.063
Use #6166A2 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.