#6670DF
Closest named color: Cornflower (#6A79F7). oklch(59.3% 0.167 276.2), rgb(102, 112, 223).
Aa
Black text reads best on this color (4.94:1).
About this color
#6670DF is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.167 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.041 away. Black text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #6670DF |
| RGB | rgb(102, 112, 223) |
| HSL | hsl(235, 65%, 64%) |
| OKLCH | oklch(59.3% 0.167 276.2) |
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 #6670DF | 4.24:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #6670DF | 4.94:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #6670DF text on white | 4.24:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #6670DF text on black | 4.94:1 | AA | Lc -32.6 | 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 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B3BDF2
oklch(80.9% 0.076 276.3)
-
Step 400
400
#8D99EB
oklch(70.7% 0.121 276.5)
-
Step 500
500
#727EE4
oklch(63.1% 0.152 276.1)
-
Step 600
600 (this color)
#6670DF
oklch(59.3% 0.167 276.2)
-
Step 700
700
#4C53B6
oklch(49.1% 0.154 276.1)
-
Step 800
800
#3E4494
oklch(42.7% 0.13 276.2)
-
Step 900
900
#343A76
oklch(37.6% 0.101 276.1)
-
Step 950
950
#1F2345
oklch(27.1% 0.063 276.3)
#6670DF 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) | #3880E3 | 0.056 |
| Deuteranopia (no green cones) | #2776DD | 0.060 |
| Tritanopia (no blue cones) | #29899D | 0.147 |
| Achromatopsia (no color) | #7B7B7B | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6670DF
#6670DF
oklch(59.3% 0.167 276.2)
- #947D00
#947D00
oklch(59.3% 0.122 96.1)
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 #6670DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.041
- Medium Slate Blue #7B68EE ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.045
- Royal Blue #4169E1 ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.057
- Soft Blue #6488EA ΔE 0.061
- Neon Blue #4361EE ΔE 0.065
Use #6670DF 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.