#6173E1
Closest named color: Cornflower (#6A79F7). oklch(59.7% 0.167 273.3), rgb(97, 115, 225).
Aa
Black text reads best on this color (5.04:1).
About this color
#6173E1 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.167 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.038 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #6173E1 |
| RGB | rgb(97, 115, 225) |
| HSL | hsl(232, 68%, 63%) |
| OKLCH | oklch(59.7% 0.167 273.3) |
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 #6173E1 | 4.16:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #6173E1 | 5.04:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #6173E1 text on white | 4.16:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #6173E1 text on black | 5.04:1 | AA | Lc -33.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF6
oklch(81% 0.081 272.8)
-
Step 400
400
#869AF2
oklch(70.8% 0.131 272.9)
-
Step 500
500 (this color)
#6173E1
oklch(59.7% 0.167 273.3)
-
Step 600
600
#5464DB
oklch(55.6% 0.181 273.2)
-
Step 700
700
#4552BE
oklch(49.1% 0.168 273.3)
-
Step 800
800
#39449A
oklch(42.8% 0.14 273.5)
-
Step 900
900
#303A7A
oklch(37.6% 0.109 273.4)
-
Step 950
950
#1C2348
oklch(27.1% 0.069 272.9)
#6173E1 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) | #3B82E5 | 0.048 |
| Deuteranopia (no green cones) | #2677DF | 0.053 |
| Tritanopia (no blue cones) | #088C9F | 0.149 |
| Achromatopsia (no color) | #7C7C7C | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6173E1
#6173E1
oklch(59.7% 0.167 273.3)
- #987D00
#987D00
oklch(59.8% 0.122 93.7)
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 #6173E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.038
- Medium Slate Blue #7B68EE ΔE 0.047
- Royal Blue #4169E1 ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.052
- Soft Blue #6488EA ΔE 0.054
- Light Indigo #6D5ACF ΔE 0.063
- Neon Blue #4361EE ΔE 0.064
- Clear Blue #247AFD ΔE 0.064
Use #6173E1 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.