#6170BD
Closest named color: Windows Blue (#3778BF). oklch(56.8% 0.12 273.7), rgb(97, 112, 189).
Aa
White text reads best on this color (4.60:1).
About this color
#6170BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.120 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.046 away. White text reads best on it, at 4.60:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.56:1 |
| White text | 4.60:1 |
Values
| HEX | #6170BD |
| RGB | rgb(97, 112, 189) |
| HSL | hsl(230, 41%, 56%) |
| OKLCH | oklch(56.8% 0.12 273.7) |
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 #6170BD | 4.60:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #6170BD | 4.56:1 | AA | Lc 32.2 | Non-text elements, placeholder text |
| #6170BD text on white | 4.60:1 | AA | Lc 71.9 | Content text, not long reading |
| #6170BD text on black | 4.56:1 | AA | Lc -29.8 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B5BFE4
oklch(80.9% 0.053 273.3)
-
Step 400
400
#8F9DD7
oklch(70.7% 0.087 273.5)
-
Step 500
500
#7484CC
oklch(63.1% 0.11 273.3)
-
Step 600
600 (this color)
#6170BD
oklch(56.8% 0.12 273.7)
-
Step 700
700
#4D5A9F
oklch(49% 0.111 273.6)
-
Step 800
800
#3F4A81
oklch(42.7% 0.092 273.4)
-
Step 900
900
#363E68
oklch(37.7% 0.073 274.2)
-
Step 950
950
#1F253D
oklch(27.1% 0.046 272.4)
#6170BD 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) | #5279C0 | 0.028 |
| Deuteranopia (no green cones) | #4971BB | 0.029 |
| Tritanopia (no blue cones) | #3D808D | 0.107 |
| Achromatopsia (no color) | #757575 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6170BD
#6170BD
oklch(56.8% 0.12 273.7)
- #8E7500
#8E7500
oklch(57% 0.117 94)
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 #6170BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.046
- French Blue #436BAD ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.060
- Cool Blue #4984B8 ΔE 0.061
- Iris #6258C4 ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.064
Use #6170BD 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.