#312B53
Closest named color: Space Cadet (#2B2D42). oklch(31.6% 0.07 288.6), rgb(49, 43, 83).
Aa
White text reads best on this color (13.11:1).
About this color
#312B53 is a dark, muted purple. In OKLCH its lightness is 32%, its chroma 0.070 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.035 away. White text reads best on it, at 13.11:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.60:1 |
| White text | 13.11:1 |
Values
| HEX | #312B53 |
| RGB | rgb(49, 43, 83) |
| HSL | hsl(249, 32%, 25%) |
| OKLCH | oklch(31.6% 0.07 288.6) |
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 #312B53 | 13.11:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #312B53 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #312B53 text on white | 13.11:1 | AAA | Lc 99.3 | Preferred for body text |
| #312B53 text on black | 1.60:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F7
oklch(88.5% 0.047 288.1)
-
Step 300
300
#BEB8F4
oklch(80.8% 0.084 288.9)
-
Step 400
400
#9E92EE
oklch(70.8% 0.132 288.5)
-
Step 500
500
#8874E8
oklch(63.2% 0.169 288.5)
-
Step 600
600
#7359D6
oklch(55.6% 0.184 288.5)
-
Step 700
700
#6148BA
oklch(49.2% 0.171 288.5)
-
Step 800
800
#4F3C96
oklch(42.7% 0.141 288.7)
-
Step 900
900
#413478
oklch(37.7% 0.112 288.7)
-
Step 950
950 (this color)
#312B53
oklch(31.6% 0.07 288.6)
#312B53 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) | #1D3154 | 0.033 |
| Deuteranopia (no green cones) | #1D2F52 | 0.032 |
| Tritanopia (no blue cones) | #28333B | 0.058 |
| Achromatopsia (no color) | #303030 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312B53
#312B53
oklch(31.6% 0.07 288.6)
- #353400
#353400
oklch(31.6% 0.068 108.6)
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 #312B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.039
- Gunmetal #293241 ΔE 0.046
- Marine #042E60 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.058
- Oxford Blue #1B263B ΔE 0.060
- Marine Blue #01386A ΔE 0.065
- Onyx #343A40 ΔE 0.067
Use #312B53 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.