#6837A5
Closest named color: Rebecca Purple (#663399). oklch(45.7% 0.169 300.2), rgb(104, 55, 165).
Aa
White text reads best on this color (7.84:1).
About this color
#6837A5 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.169 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.021 away. White text reads best on it, at 7.84:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #6837A5 |
| RGB | rgb(104, 55, 165) |
| HSL | hsl(267, 50%, 43%) |
| OKLCH | oklch(45.7% 0.169 300.2) |
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 #6837A5 | 7.84:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #6837A5 | 2.67:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #6837A5 text on white | 7.84:1 | AAA | Lc 86.6 | Fine for body text |
| #6837A5 text on black | 2.67:1 | Fails | Lc -15.4 | 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 800.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DED2F9
oklch(88.6% 0.054 299.3)
-
Step 300
300
#CAB2F7
oklch(80.8% 0.099 300.2)
-
Step 400
400
#B187F3
oklch(70.7% 0.158 300.4)
-
Step 500
500
#9F64EF
oklch(63.2% 0.202 300.3)
-
Step 600
600
#8A45DD
oklch(55.6% 0.219 300)
-
Step 700
700
#7635C0
oklch(49.2% 0.204 300.2)
-
Step 800
800 (this color)
#6837A5
oklch(45.7% 0.169 300.2)
-
Step 900
900
#4E2B7B
oklch(37.7% 0.131 300.4)
-
Step 950
950
#2D1A48
oklch(26.9% 0.083 299.9)
#6837A5 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) | #0051A8 | 0.122 |
| Deuteranopia (no green cones) | #0051A3 | 0.123 |
| Tritanopia (no blue cones) | #5B5069 | 0.127 |
| Achromatopsia (no color) | #525252 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6837A5
#6837A5
oklch(45.7% 0.169 300.2)
- #505F00
#505F00
oklch(45.6% 0.108 119.8)
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 #6837A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.021
- Bluey Purple #6241C7 ΔE 0.058
- Grape #7209B7 ΔE 0.061
- Blueberry #464196 ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.071
- Blurple #5539CC ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.074
Use #6837A5 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.