#837CA9
Closest named color: Lavender Gray (#7E7F9A). oklch(60.9% 0.068 291.4), rgb(131, 124, 169).
Aa
Black text reads best on this color (5.42:1).
About this color
#837CA9 is a medium-dark, muted purple. In OKLCH its lightness is 61%, its chroma 0.068 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.028 away. Black text reads best on it, at 5.42:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.42:1 |
| White text | 3.87:1 |
Values
| HEX | #837CA9 |
| RGB | rgb(131, 124, 169) |
| HSL | hsl(249, 21%, 57%) |
| OKLCH | oklch(60.9% 0.068 291.4) |
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 #837CA9 | 3.87:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #837CA9 | 5.42:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #837CA9 text on white | 3.87:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #837CA9 text on black | 5.42:1 | AA | Lc -35.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#D9D7E5
oklch(88.5% 0.019 292.6)
-
Step 300
300
#C0BDD5
oklch(80.8% 0.034 291.4)
-
Step 400
400
#A09BC0
oklch(70.6% 0.054 291.2)
-
Step 500
500 (this color)
#837CA9
oklch(60.9% 0.068 291.4)
-
Step 600
600
#736C9B
oklch(55.6% 0.072 290.7)
-
Step 700
700
#615A85
oklch(49.2% 0.068 291.1)
-
Step 800
800
#4F496C
oklch(42.6% 0.058 291.6)
-
Step 900
900
#423D57
oklch(37.6% 0.044 293)
-
Step 950
950
#262433
oklch(26.9% 0.028 290.5)
#837CA9 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) | #7182AB | 0.028 |
| Deuteranopia (no green cones) | #7181A8 | 0.028 |
| Tritanopia (no blue cones) | #7B838C | 0.056 |
| Achromatopsia (no color) | #818181 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837CA9
#837CA9
oklch(60.9% 0.068 291.4)
- #848757
#848757
oklch(60.9% 0.067 111.3)
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 #837CA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.028
- Faded Purple #916E99 ΔE 0.042
- Purpley Grey #947E94 ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.049
- Light Slate Gray #778899 ΔE 0.050
- Steel #738595 ΔE 0.051
- Dark Lilac #9C6DA5 ΔE 0.052
- Grey Purple #826D8C ΔE 0.052
Use #837CA9 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.