#691B77
Closest named color: Purple (#800080). oklch(39.2% 0.157 321), rgb(105, 27, 119).
Aa
White text reads best on this color (10.37:1).
About this color
#691B77 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.157 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.051 away. White text reads best on it, at 10.37:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 2.02:1 |
| White text | 10.37:1 |
Values
| HEX | #691B77 |
| RGB | rgb(105, 27, 119) |
| HSL | hsl(291, 63%, 29%) |
| OKLCH | oklch(39.2% 0.157 321) |
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 #691B77 | 10.37:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #691B77 | 2.02:1 | Fails | Lc 10.9 | Not readable |
| #691B77 text on white | 10.37:1 | AAA | Lc 93.1 | Preferred for body text |
| #691B77 text on black | 2.02:1 | Fails | Lc -9.4 | 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 900.
-
Step 50
50
#FBF2FC
oklch(97.1% 0.016 322.7)
-
Step 100
100
#F5E3F8
oklch(93.6% 0.034 321.4)
-
Step 200
200
#EECCF4
oklch(88.6% 0.065 321.2)
-
Step 300
300
#E4A7EF
oklch(80.9% 0.118 321.2)
-
Step 400
400
#D473E7
oklch(70.7% 0.189 320.9)
-
Step 500
500
#C744DF
oklch(63.1% 0.241 321)
-
Step 600
600
#B307CD
oklch(55.7% 0.263 321.1)
-
Step 700
700
#9700AE
oklch(49% 0.234 320.9)
-
Step 800
800
#7D038F
oklch(42.8% 0.202 321.3)
-
Step 900
900 (this color)
#691B77
oklch(39.2% 0.157 321)
-
Step 950
950
#3B1043
oklch(27% 0.099 321)
#691B77 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) | #003B7A | 0.157 |
| Deuteranopia (no green cones) | #264375 | 0.138 |
| Tritanopia (no blue cones) | #6A2D48 | 0.095 |
| Achromatopsia (no color) | #404040 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #691B77
#691B77
oklch(39.2% 0.157 321)
- #0E5500
#0E5500
oklch(39.2% 0.129 141.1)
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 #691B77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.051
- Rich Purple #720058 ΔE 0.060
- Rebecca Purple #663399 ΔE 0.069
- Grape Purple #5D1451 ΔE 0.069
- Velvet #750851 ΔE 0.071
- Dark Magenta #8B008B ΔE 0.076
- Royal Purple #4B006E ΔE 0.079
- Indigo #4B0082 ΔE 0.080
Use #691B77 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.