#691AA3
Closest named color: Grape (#7209B7). oklch(42.6% 0.199 304.8), rgb(105, 26, 163).
Aa
White text reads best on this color (9.22:1).
About this color
#691AA3 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.199 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.036 away. White text reads best on it, at 9.22:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.199) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #691AA3 |
| RGB | rgb(105, 26, 163) |
| HSL | hsl(275, 72%, 37%) |
| OKLCH | oklch(42.6% 0.199 304.8) |
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 #691AA3 | 9.22:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #691AA3 | 2.27:1 | Fails | Lc 14.0 | Not readable |
| #691AA3 text on white | 9.22:1 | AAA | Lc 90.0 | Fine for body text |
| #691AA3 text on black | 2.27:1 | Fails | Lc -12.3 | 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
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FD
oklch(93.7% 0.034 304.5)
-
Step 200
200
#E3CFFC
oklch(88.5% 0.065 305.3)
-
Step 300
300
#D2ADFD
oklch(80.8% 0.117 305.1)
-
Step 400
400
#BC7DFC
oklch(70.7% 0.186 305)
-
Step 500
500
#AC53FA
oklch(63.1% 0.239 304.9)
-
Step 600
600
#982BE8
oklch(55.6% 0.258 305)
-
Step 700
700
#8218CA
oklch(49.1% 0.241 304.9)
-
Step 800
800 (this color)
#691AA3
oklch(42.6% 0.199 304.8)
-
Step 900
900
#552082
oklch(37.7% 0.156 304.5)
-
Step 950
950
#32154C
oklch(27.1% 0.098 304.9)
#691AA3 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) | #0046A7 | 0.144 |
| Deuteranopia (no green cones) | #0047A0 | 0.146 |
| Tritanopia (no blue cones) | #5E4161 | 0.141 |
| Achromatopsia (no color) | #474747 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #691AA3
#691AA3
oklch(42.6% 0.199 304.8)
- #425800
#425800
oklch(42.6% 0.107 124.6)
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 #691AA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.036
- Rebecca Purple #663399 ΔE 0.042
- Chrysanthemum #560BAD ΔE 0.048
- Imperial Purple #480CA8 ΔE 0.073
- Purple Blue #5D21D0 ΔE 0.080
- Purple #800080 ΔE 0.080
- Violet Blue #510AC9 ΔE 0.084
- Dark Magenta #8B008B ΔE 0.085
Use #691AA3 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.