#613377
Closest named color: Rebecca Purple (#663399). oklch(41.1% 0.119 313.6), rgb(97, 51, 119).
Aa
White text reads best on this color (9.34:1).
About this color
#613377 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.119 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.057 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #613377 |
| RGB | rgb(97, 51, 119) |
| HSL | hsl(281, 40%, 33%) |
| OKLCH | oklch(41.1% 0.119 313.6) |
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 #613377 | 9.34:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #613377 | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #613377 text on white | 9.34:1 | AAA | Lc 91.2 | Preferred for body text |
| #613377 text on black | 2.24:1 | Fails | Lc -11.1 | Not readable |
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 800.
-
Step 50
50
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E2D2EC
oklch(88.5% 0.039 312.6)
-
Step 300
300
#D1B4E1
oklch(80.9% 0.07 313.5)
-
Step 400
400
#B98BD1
oklch(70.6% 0.111 313.6)
-
Step 500
500
#A86DC5
oklch(63.1% 0.142 313.8)
-
Step 600
600
#9353B2
oklch(55.6% 0.154 313.6)
-
Step 700
700
#7D4399
oklch(49.1% 0.143 313.5)
-
Step 800
800 (this color)
#613377
oklch(41.1% 0.119 313.6)
-
Step 900
900
#533164
oklch(37.8% 0.092 313.5)
-
Step 950
950
#311D3A
oklch(27% 0.058 314.7)
#613377 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) | #214479 | 0.104 |
| Deuteranopia (no green cones) | #314875 | 0.092 |
| Tritanopia (no blue cones) | #5F3E50 | 0.079 |
| Achromatopsia (no color) | #474747 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613377
#613377
oklch(41.1% 0.119 313.6)
- #2E5700
#2E5700
oklch(41% 0.117 133.6)
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 #613377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.058
- Blueberry #464196 ΔE 0.074
- Twilight #4E518B ΔE 0.082
- Grape Purple #5D1451 ΔE 0.084
- Purple #800080 ΔE 0.085
- Rich Purple #720058 ΔE 0.087
- Dusk #4E5481 ΔE 0.089
Use #613377 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.