#613FCB
Closest named color: Bluey Purple (#6241C7). oklch(49.2% 0.204 287.6), rgb(97, 63, 203).
Aa
White text reads best on this color (6.81:1).
About this color
#613FCB is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.204 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.008 away. White text reads best on it, at 6.81:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.204) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #613FCB |
| RGB | rgb(97, 63, 203) |
| HSL | hsl(255, 57%, 52%) |
| OKLCH | oklch(49.2% 0.204 287.6) |
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 #613FCB | 6.81:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #613FCB | 3.08:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #613FCB text on white | 6.81:1 | AA | Lc 82.8 | Fine for body text |
| #613FCB text on black | 3.08:1 | AA large text | Lc -19.1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FC
oklch(88.4% 0.055 287.5)
-
Step 300
300
#BCB7FD
oklch(80.9% 0.098 287.3)
-
Step 400
400
#9C8EFC
oklch(70.6% 0.157 287.5)
-
Step 500
500
#876DFA
oklch(63.1% 0.202 287.7)
-
Step 600
600
#7350E9
oklch(55.7% 0.219 287.6)
-
Step 700
700 (this color)
#613FCB
oklch(49.2% 0.204 287.6)
-
Step 800
800
#4F35A4
oklch(42.7% 0.169 287.8)
-
Step 900
900
#413082
oklch(37.7% 0.132 287.9)
-
Step 950
950
#251D4C
oklch(26.9% 0.083 287.2)
#613FCB 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) | #005ECF | 0.102 |
| Deuteranopia (no green cones) | #0057C8 | 0.098 |
| Tritanopia (no blue cones) | #386380 | 0.167 |
| Achromatopsia (no color) | #5B5B5B | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613FCB
#613FCB
oklch(49.2% 0.204 287.6)
- #686400
#686400
oklch(49.1% 0.105 107)
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 #613FCB, closest first.
No curated palette has a color within ΔE 0.04 of #613FCB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.008
- Blurple #5539CC ΔE 0.025
- Blue With A Hint Of Purple #533CC6 ΔE 0.026
- Burple #6832E3 ΔE 0.042
- Purpley Blue #5F34E7 ΔE 0.046
- Purple Blue #5D21D0 ΔE 0.047
- Iris #6258C4 ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.060
Use #613FCB 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.