#402973
Closest named color: Indigo (#4B0082). oklch(35.2% 0.121 293.5), rgb(64, 41, 115).
Aa
White text reads best on this color (11.77:1).
About this color
#402973 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.121 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.063 away. White text reads best on it, at 11.77:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.78:1 |
| White text | 11.77:1 |
Values
| HEX | #402973 |
| RGB | rgb(64, 41, 115) |
| HSL | hsl(259, 47%, 31%) |
| OKLCH | oklch(35.2% 0.121 293.5) |
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 #402973 | 11.77:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #402973 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #402973 text on white | 11.77:1 | AAA | Lc 96.7 | Preferred for body text |
| #402973 text on black | 1.78:1 | Fails | Lc 0.0 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#DAD3F8
oklch(88.4% 0.051 294)
-
Step 300
300
#C3B6F6
oklch(80.9% 0.09 293.6)
-
Step 400
400
#A68DF2
oklch(70.7% 0.146 293.7)
-
Step 500
500
#916DED
oklch(63.1% 0.185 293.3)
-
Step 600
600
#7D50DC
oklch(55.6% 0.203 293.5)
-
Step 700
700
#6A40BF
oklch(49.2% 0.188 293.5)
-
Step 800
800
#56369A
oklch(42.7% 0.155 293.5)
-
Step 900
900 (this color)
#402973
oklch(35.2% 0.121 293.5)
-
Step 950
950
#291D48
oklch(27% 0.077 293.4)
#402973 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) | #003975 | 0.078 |
| Deuteranopia (no green cones) | #003671 | 0.078 |
| Tritanopia (no blue cones) | #323A4A | 0.096 |
| Achromatopsia (no color) | #383838 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402973
#402973
oklch(35.2% 0.121 293.5)
- #3B3F00
#3B3F00
oklch(35.2% 0.079 113.8)
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 #402973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.064
- Royal Purple #4B006E ΔE 0.065
- Marine Blue #01386A ΔE 0.082
- Prussian Blue #1D3557 ΔE 0.082
- Blueberry #464196 ΔE 0.082
- Midnight Blue #191970 ΔE 0.083
- Twilight Blue #0A437A ΔE 0.086
Use #402973 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.