#6738CF
Closest named color: Bluey Purple (#6241C7). oklch(49.2% 0.216 290.4), rgb(103, 56, 207).
Aa
White text reads best on this color (6.90:1).
About this color
#6738CF is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.216 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.021 away. White text reads best on it, at 6.90:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.216) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #6738CF |
| RGB | rgb(103, 56, 207) |
| HSL | hsl(259, 61%, 52%) |
| OKLCH | oklch(49.2% 0.216 290.4) |
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 #6738CF | 6.90:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #6738CF | 3.04:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #6738CF text on white | 6.90:1 | AA | Lc 83.0 | Fine for body text |
| #6738CF text on black | 3.04:1 | AA large text | Lc -18.9 | 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 700.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D8D3FE
oklch(88.5% 0.059 290.5)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8D68FE
oklch(63.1% 0.213 290.3)
-
Step 600
600
#7948EE
oklch(55.5% 0.233 290.2)
-
Step 700
700 (this color)
#6738CF
oklch(49.2% 0.216 290.4)
-
Step 800
800
#5330A7
oklch(42.7% 0.179 290.2)
-
Step 900
900
#442D84
oklch(37.7% 0.139 290.3)
-
Step 950
950
#281B4D
oklch(26.9% 0.088 291.3)
#6738CF 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) | #005DD3 | 0.114 |
| Deuteranopia (no green cones) | #0056CC | 0.111 |
| Tritanopia (no blue cones) | #436180 | 0.174 |
| Achromatopsia (no color) | #5A5A5A | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6738CF
#6738CF
oklch(49.2% 0.216 290.4)
- #656600
#656600
oklch(49.3% 0.108 110.4)
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 #6738CF, closest first.
No curated palette has a color within ΔE 0.04 of #6738CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.021
- Burple #6832E3 ΔE 0.032
- Blurple #5539CC ΔE 0.032
- Blue With A Hint Of Purple #533CC6 ΔE 0.037
- Purple Blue #5D21D0 ΔE 0.039
- Purpley Blue #5F34E7 ΔE 0.041
- Purply Blue #661AEE ΔE 0.056
- Iris #6258C4 ΔE 0.068
Use #6738CF 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.