#675CEF
Closest named color: Medium Slate Blue (#7B68EE). oklch(57% 0.213 280.6), rgb(103, 92, 239).
Aa
White text reads best on this color (4.82:1).
About this color
#675CEF is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.213 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.043 away. White text reads best on it, at 4.82:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.213) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #675CEF |
| RGB | rgb(103, 92, 239) |
| HSL | hsl(244, 82%, 65%) |
| OKLCH | oklch(57% 0.213 280.6) |
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 #675CEF | 4.82:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #675CEF | 4.35:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #675CEF text on white | 4.82:1 | AA | Lc 73.0 | Content text, not long reading |
| #675CEF text on black | 4.35:1 | AA large text | Lc -28.7 | Dividers and decoration only |
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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FC
oklch(88.5% 0.052 280.5)
-
Step 300
300
#B5BAFE
oklch(80.9% 0.096 280.8)
-
Step 400
400
#9093FD
oklch(70.7% 0.153 280.5)
-
Step 500
500
#7874FB
oklch(63.2% 0.195 280.5)
-
Step 600
600 (this color)
#675CEF
oklch(57% 0.213 280.6)
-
Step 700
700
#5346CC
oklch(49.1% 0.199 280.6)
-
Step 800
800
#443BA5
oklch(42.8% 0.164 280.7)
-
Step 900
900
#383482
oklch(37.6% 0.127 280.7)
-
Step 950
950
#201F4C
oklch(26.9% 0.081 280.5)
#675CEF 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) | #0077F4 | 0.089 |
| Deuteranopia (no green cones) | #006CEC | 0.082 |
| Tritanopia (no blue cones) | #16809D | 0.182 |
| Achromatopsia (no color) | #727272 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #675CEF
#675CEF
oklch(57% 0.213 280.6)
- #877800
#877800
oklch(56.9% 0.119 100.6)
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 #675CEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.043
- Neon Blue #4361EE ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.052
- Warm Blue #4B57DB ΔE 0.052
- Purpley #8756E4 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.056
Use #675CEF 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.