#676AD9
Closest named color: Dark Periwinkle (#665FD1). oklch(57.8% 0.166 278.7), rgb(103, 106, 217).
Aa
Black text reads best on this color (4.64:1).
About this color
#676AD9 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.166 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.028 away. Black text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #676AD9 |
| RGB | rgb(103, 106, 217) |
| HSL | hsl(238, 60%, 63%) |
| OKLCH | oklch(57.8% 0.166 278.7) |
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 #676AD9 | 4.52:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #676AD9 | 4.64:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #676AD9 text on white | 4.52:1 | AA | Lc 71.2 | Content text, not long reading |
| #676AD9 text on black | 4.64:1 | AA | Lc -30.5 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B5BCF1
oklch(80.8% 0.075 278.7)
-
Step 400
400
#9098EA
oklch(70.6% 0.12 278.6)
-
Step 500
500
#777CE4
oklch(63.1% 0.154 278.9)
-
Step 600
600 (this color)
#676AD9
oklch(57.8% 0.166 278.7)
-
Step 700
700
#5151B5
oklch(49% 0.154 279.1)
-
Step 800
800
#424393
oklch(42.7% 0.129 278.9)
-
Step 900
900
#373A75
oklch(37.8% 0.099 278.3)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#676AD9 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) | #317BDD | 0.064 |
| Deuteranopia (no green cones) | #2272D7 | 0.067 |
| Tritanopia (no blue cones) | #358397 | 0.146 |
| Achromatopsia (no color) | #767676 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #676AD9
#676AD9
oklch(57.8% 0.166 278.7)
- #8C7A00
#8C7A00
oklch(57.9% 0.12 98.9)
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 #676AD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.028
- Light Indigo #6D5ACF ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.040
- Medium Slate Blue #7B68EE ΔE 0.044
- Royal Blue #4169E1 ΔE 0.048
- Iris #6258C4 ΔE 0.053
- Cornflower #6A79F7 ΔE 0.056
- Neon Blue #4361EE ΔE 0.062
Use #676AD9 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.