#676BEC
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.3% 0.19 277.5), rgb(103, 107, 236).
Aa
Black text reads best on this color (4.89:1).
About this color
#676BEC is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.190 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.029 away. Black text reads best on it, at 4.89:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.89:1 |
| White text | 4.29:1 |
Values
| HEX | #676BEC |
| RGB | rgb(103, 107, 236) |
| HSL | hsl(238, 78%, 66%) |
| OKLCH | oklch(59.3% 0.19 277.5) |
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 #676BEC | 4.29:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #676BEC | 4.89:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #676BEC text on white | 4.29:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #676BEC text on black | 4.89:1 | AA | Lc -32.3 | 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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B3BCF8
oklch(80.9% 0.085 277.7)
-
Step 400
400
#8C97F5
oklch(70.7% 0.137 277.2)
-
Step 500
500
#737AF1
oklch(63.2% 0.175 277.6)
-
Step 600
600 (this color)
#676BEC
oklch(59.3% 0.19 277.5)
-
Step 700
700
#4D4EC2
oklch(49.2% 0.177 277.3)
-
Step 800
800
#3F409D
oklch(42.7% 0.148 277.7)
-
Step 900
900
#35387C
oklch(37.7% 0.113 277.6)
-
Step 950
950
#1F2149
oklch(27% 0.073 278.2)
#676BEC 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) | #0C80F0 | 0.077 |
| Deuteranopia (no green cones) | #0075E9 | 0.075 |
| Tritanopia (no blue cones) | #1889A1 | 0.166 |
| Achromatopsia (no color) | #7A7A7A | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #676BEC
#676BEC
oklch(59.3% 0.19 277.5)
- #927E00
#927E00
oklch(59.4% 0.123 98)
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 #676BEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.029
- Cornflower #6A79F7 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.048
- Royal Blue #4169E1 ΔE 0.050
- Neon Blue #4361EE ΔE 0.054
- Light Indigo #6D5ACF ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.059
- Purpley #8756E4 ΔE 0.064
Use #676BEC 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.