#676EEB
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.8% 0.185 276.8), rgb(103, 110, 235).
Aa
Black text reads best on this color (5.00:1).
About this color
#676EEB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.185 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.031 away. Black text reads best on it, at 5.00:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #676EEB |
| RGB | rgb(103, 110, 235) |
| HSL | hsl(237, 77%, 66%) |
| OKLCH | oklch(59.8% 0.185 276.8) |
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 #676EEB | 4.19:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #676EEB | 5.00:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #676EEB text on white | 4.19:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #676EEB text on black | 5.00:1 | AA | Lc -33.1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FB
oklch(88.5% 0.05 276.6)
-
Step 300
300
#B1BCFB
oklch(80.9% 0.09 276.5)
-
Step 400
400
#8A96FA
oklch(70.7% 0.146 276.8)
-
Step 500
500 (this color)
#676EEB
oklch(59.8% 0.185 276.8)
-
Step 600
600
#5B5DE5
oklch(55.5% 0.201 277)
-
Step 700
700
#4B4CC7
oklch(49.1% 0.187 276.7)
-
Step 800
800
#3D3FA1
oklch(42.7% 0.155 276.7)
-
Step 900
900
#333780
oklch(37.7% 0.121 276.5)
-
Step 950
950
#1E214B
oklch(27.1% 0.077 276.9)
#676EEB 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) | #2081EF | 0.070 |
| Deuteranopia (no green cones) | #0076E8 | 0.073 |
| Tritanopia (no blue cones) | #198BA2 | 0.163 |
| Achromatopsia (no color) | #7C7C7C | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #676EEB
#676EEB
oklch(59.8% 0.185 276.8)
- #957F00
#957F00
oklch(59.9% 0.123 96.9)
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 #676EEB, closest first.
No curated palette has a color within ΔE 0.04 of #676EEB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.031
- Cornflower #6A79F7 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.051
- Royal Blue #4169E1 ΔE 0.051
- Neon Blue #4361EE ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.062
- Soft Blue #6488EA ΔE 0.065
Use #676EEB 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.