#675FF5
Closest named color: Medium Slate Blue (#7B68EE). oklch(58% 0.217 279.6), rgb(103, 95, 245).
Aa
White text reads best on this color (4.63:1).
About this color
#675FF5 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.217 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.040 away. White text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.217) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.53:1 |
| White text | 4.63:1 |
Values
| HEX | #675FF5 |
| RGB | rgb(103, 95, 245) |
| HSL | hsl(243, 88%, 67%) |
| OKLCH | oklch(58% 0.217 279.6) |
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 #675FF5 | 4.63:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #675FF5 | 4.53:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #675FF5 text on white | 4.63:1 | AA | Lc 71.7 | Content text, not long reading |
| #675FF5 text on black | 4.53:1 | AA | Lc -30.0 | 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
#E5E8FD
oklch(93.5% 0.029 279.4)
-
Step 200
200
#D1D6FD
oklch(88.5% 0.054 279.5)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400
#8E93FF
oklch(70.6% 0.156 279.6)
-
Step 500
500
#7574FE
oklch(63.2% 0.2 279.3)
-
Step 600
600 (this color)
#675FF5
oklch(58% 0.217 279.6)
-
Step 700
700
#5146CE
oklch(49.1% 0.201 279.6)
-
Step 800
800
#423BA6
oklch(42.7% 0.166 279.7)
-
Step 900
900
#373484
oklch(37.7% 0.13 279.8)
-
Step 950
950
#201F4D
oklch(26.9% 0.083 280.3)
#675FF5 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) | #007AFA | 0.087 |
| Deuteranopia (no green cones) | #006FF2 | 0.080 |
| Tritanopia (no blue cones) | #0084A1 | 0.187 |
| Achromatopsia (no color) | #757575 | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #675FF5
#675FF5
oklch(58% 0.217 279.6)
- #8C7B00
#8C7B00
oklch(58.1% 0.121 99.6)
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 #675FF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.040
- Neon Blue #4361EE ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.055
- Royal Blue #4169E1 ΔE 0.058
- Purpley #8756E4 ΔE 0.058
- Light Indigo #6D5ACF ΔE 0.059
- Warm Blue #4B57DB ΔE 0.060
- Cornflower #6A79F7 ΔE 0.060
Use #675FF5 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.