#402977
Closest named color: Indigo (#4B0082). oklch(35.5% 0.127 292.3), rgb(64, 41, 119).
Aa
White text reads best on this color (11.65:1).
About this color
#402977 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.127 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.060 away. White text reads best on it, at 11.65:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #402977 |
| RGB | rgb(64, 41, 119) |
| HSL | hsl(258, 49%, 31%) |
| OKLCH | oklch(35.5% 0.127 292.3) |
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 #402977 | 11.65:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #402977 | 1.80:1 | Fails | Lc 7.5 | Not readable |
| #402977 text on white | 11.65:1 | AAA | Lc 96.4 | Preferred for body text |
| #402977 text on black | 1.80:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D3FA
oklch(88.4% 0.054 292.3)
-
Step 300
300
#C2B6F9
oklch(81% 0.094 292.4)
-
Step 400
400
#A48CF6
oklch(70.6% 0.152 292.5)
-
Step 500
500
#906BF3
oklch(63.1% 0.196 292.4)
-
Step 600
600
#7C4EE1
oklch(55.6% 0.211 292.6)
-
Step 700
700
#693EC4
oklch(49.2% 0.197 292.4)
-
Step 800
800
#55349E
oklch(42.7% 0.163 292.4)
-
Step 900
900 (this color)
#402977
oklch(35.5% 0.127 292.3)
-
Step 950
950
#281D4A
oklch(27.1% 0.08 291.4)
#402977 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) | #003979 | 0.077 |
| Deuteranopia (no green cones) | #003775 | 0.077 |
| Tritanopia (no blue cones) | #303B4C | 0.101 |
| Achromatopsia (no color) | #383838 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402977
#402977
oklch(35.5% 0.127 292.3)
- #3D4000
#3D4000
oklch(35.7% 0.079 112.7)
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 #402977, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.061
- Royal Purple #4B006E ΔE 0.066
- Blueberry #464196 ΔE 0.077
- Midnight Blue #191970 ΔE 0.083
- Marine Blue #01386A ΔE 0.083
- Twilight Blue #0A437A ΔE 0.085
- Prussian Blue #1D3557 ΔE 0.086
Use #402977 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.