#31235B
Closest named color: Marine (#042E60). oklch(30.6% 0.096 291.2), rgb(49, 35, 91).
Aa
White text reads best on this color (13.79:1).
About this color
#31235B is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.096 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Marine (#042E60), ΔE 0.059 away. White text reads best on it, at 13.79:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Marine (#042E60) |
| Black text | 1.52:1 |
| White text | 13.79:1 |
Values
| HEX | #31235B |
| RGB | rgb(49, 35, 91) |
| HSL | hsl(255, 44%, 25%) |
| OKLCH | oklch(30.6% 0.096 291.2) |
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 #31235B | 13.79:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #31235B | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #31235B text on white | 13.79:1 | AAA | Lc 100.2 | Preferred for body text |
| #31235B text on black | 1.52:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E6FF
oklch(93.5% 0.034 291.2)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C1B5FF
oklch(81% 0.104 291.3)
-
Step 400
400
#A38AFF
oklch(70.7% 0.167 291.4)
-
Step 500
500
#8F66FF
oklch(63% 0.217 291.2)
-
Step 600
600
#7D3FF7
oklch(55.6% 0.252 291.3)
-
Step 700
700
#6A2DD8
oklch(49.1% 0.236 291.2)
-
Step 800
800
#5629AE
oklch(42.7% 0.195 291.3)
-
Step 900
900
#46298A
oklch(37.8% 0.152 291.1)
-
Step 950
950 (this color)
#31235B
oklch(30.6% 0.096 291.2)
#31235B 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) | #032E5D | 0.060 |
| Deuteranopia (no green cones) | #062C5A | 0.058 |
| Tritanopia (no blue cones) | #252F3B | 0.078 |
| Achromatopsia (no color) | #2D2D2D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31235B
#31235B
oklch(30.6% 0.096 291.2)
- #313200
#313200
oklch(30.6% 0.067 111)
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 #31235B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Midnight Blue #191970 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.072
- Dark Indigo #1F0954 ΔE 0.072
- Gunmetal #293241 ΔE 0.073
- Marine Blue #01386A ΔE 0.074
Use #31235B 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.