#220731
Closest named color: Midnight Purple (#280137). oklch(20.3% 0.081 310.6), rgb(34, 7, 49).
Aa
White text reads best on this color (18.37:1).
About this color
#220731 is a very dark, moderately saturated purple. In OKLCH its lightness is 20%, its chroma 0.081 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.022 away. White text reads best on it, at 18.37:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.14:1 |
| White text | 18.37:1 |
Values
| HEX | #220731 |
| RGB | rgb(34, 7, 49) |
| HSL | hsl(279, 75%, 11%) |
| OKLCH | oklch(20.3% 0.081 310.6) |
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 #220731 | 18.37:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #220731 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #220731 text on white | 18.37:1 | AAA | Lc 104.7 | Preferred for body text |
| #220731 text on black | 1.14:1 | 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 950.
-
Step 50
50
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#F0E5F8
oklch(93.6% 0.028 311.3)
-
Step 200
200
#E4D0F4
oklch(88.5% 0.053 310.1)
-
Step 300
300
#D4AFEF
oklch(80.8% 0.097 310.5)
-
Step 400
400
#BF83E7
oklch(70.8% 0.153 310.6)
-
Step 500
500
#AE5EDF
oklch(63% 0.197 310.6)
-
Step 600
600
#9A3FCD
oklch(55.6% 0.214 310.6)
-
Step 700
700
#8330B1
oklch(49.1% 0.197 310.5)
-
Step 800
800
#6B298F
oklch(42.7% 0.164 311)
-
Step 900
900
#572873
oklch(37.8% 0.128 310.6)
-
Step 950
950 (this color)
#220731
oklch(20.3% 0.081 310.6)
#220731 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) | #001332 | 0.069 |
| Deuteranopia (no green cones) | #021530 | 0.068 |
| Tritanopia (no blue cones) | #20101B | 0.054 |
| Achromatopsia (no color) | #141414 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #220731
#220731
oklch(20.3% 0.081 310.6)
- #0E1B00
#0E1B00
oklch(20.2% 0.054 129.9)
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 #220731, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.022
- Very Dark Purple #2A0134 ΔE 0.023
- Dark Purple #35063E ΔE 0.051
- Deep Purple #36013F ΔE 0.054
- Eggplant #380835 ΔE 0.055
- Aubergine #3D0734 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.069
- Rich Black #0D1B2A ΔE 0.072
Use #220731 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.