#6B73AB
Closest named color: Stormy Blue (#507B9C). oklch(57.2% 0.087 277.1), rgb(107, 115, 171).
Aa
Black text reads best on this color (4.66:1).
About this color
#6B73AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.087 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.050 away. Black text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #6B73AB |
| RGB | rgb(107, 115, 171) |
| HSL | hsl(233, 28%, 55%) |
| OKLCH | oklch(57.2% 0.087 277.1) |
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 #6B73AB | 4.50:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #6B73AB | 4.66:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #6B73AB text on white | 4.50:1 | AA | Lc 71.2 | Content text, not long reading |
| #6B73AB text on black | 4.66:1 | AA | Lc -30.5 | 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 600.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#BABFDA
oklch(80.9% 0.038 277.2)
-
Step 400
400
#969EC8
oklch(70.8% 0.062 276.3)
-
Step 500
500
#7D85BA
oklch(63.1% 0.08 277.2)
-
Step 600
600 (this color)
#6B73AB
oklch(57.2% 0.087 277.1)
-
Step 700
700
#555C8E
oklch(49.1% 0.08 276.9)
-
Step 800
800
#464B73
oklch(42.6% 0.067 277.7)
-
Step 900
900
#3A3F5D
oklch(37.7% 0.052 276.3)
-
Step 950
950
#222537
oklch(27% 0.034 276.6)
#6B73AB 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) | #6179AD | 0.020 |
| Deuteranopia (no green cones) | #5D74AA | 0.019 |
| Tritanopia (no blue cones) | #587E87 | 0.078 |
| Achromatopsia (no color) | #777777 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B73AB
#6B73AB
oklch(57.2% 0.087 277.1)
- #867837
#867837
oklch(57.2% 0.087 97.3)
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 #6B73AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.050
- Off Blue #5684AE ΔE 0.051
- Dull Blue #49759C ΔE 0.051
- Dark Lavender #856798 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.054
- Dusty Blue #5A86AD ΔE 0.055
- Grey Purple #826D8C ΔE 0.056
- Cool Blue #4984B8 ΔE 0.056
Use #6B73AB 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.