#311C43
Closest named color: Dark Purple (#35063E). oklch(27.4% 0.073 307.1), rgb(49, 28, 67).
Aa
White text reads best on this color (15.24:1).
About this color
#311C43 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.073 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.048 away. White text reads best on it, at 15.24:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.37:1 |
| White text | 15.24:1 |
Values
| HEX | #311C43 |
| RGB | rgb(49, 28, 67) |
| HSL | hsl(272, 41%, 19%) |
| OKLCH | oklch(27.4% 0.073 307.1) |
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 #311C43 | 15.24:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #311C43 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #311C43 text on white | 15.24:1 | AAA | Lc 102.0 | Preferred for body text |
| #311C43 text on black | 1.37:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D1F3
oklch(88.4% 0.049 306.6)
-
Step 300
300
#CFB2ED
oklch(80.8% 0.087 306.9)
-
Step 400
400
#B788E4
oklch(70.7% 0.139 306.7)
-
Step 500
500
#A667DB
oklch(63.2% 0.176 307.2)
-
Step 600
600
#914AC9
oklch(55.6% 0.193 306.9)
-
Step 700
700
#7C3AAE
oklch(49.1% 0.18 307.1)
-
Step 800
800
#65318D
oklch(42.8% 0.149 307.2)
-
Step 900
900
#522D70
oklch(37.7% 0.115 307.3)
-
Step 950
950 (this color)
#311C43
oklch(27.4% 0.073 307.1)
#311C43 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) | #112544 | 0.057 |
| Deuteranopia (no green cones) | #172642 | 0.052 |
| Tritanopia (no blue cones) | #2E232C | 0.053 |
| Achromatopsia (no color) | #252525 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311C43
#311C43
oklch(27.4% 0.073 307.1)
- #1E2D00
#1E2D00
oklch(27.3% 0.07 126.8)
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 #311C43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.048
- Eggplant #380835 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.053
- Aubergine #3D0734 ΔE 0.054
- Eggplant Purple #430541 ΔE 0.056
- Deep Purple #36013F ΔE 0.056
- Dark #1B2431 ΔE 0.061
Use #311C43 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.