#312B41
Closest named color: Space Cadet (#2B2D42). oklch(30.6% 0.04 296.5), rgb(49, 43, 65).
Aa
White text reads best on this color (13.52:1).
About this color
#312B41 is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.040 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.012 away. White text reads best on it, at 13.52:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.52:1 |
Values
| HEX | #312B41 |
| RGB | rgb(49, 43, 65) |
| HSL | hsl(256, 20%, 21%) |
| OKLCH | oklch(30.6% 0.04 296.5) |
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 #312B41 | 13.52:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #312B41 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #312B41 text on white | 13.52:1 | AAA | Lc 100.0 | Preferred for body text |
| #312B41 text on black | 1.55:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EAE8F2
oklch(93.5% 0.014 295.3)
-
Step 200
200
#DAD6E9
oklch(88.5% 0.026 295.5)
-
Step 300
300
#C3BBDC
oklch(80.9% 0.047 296.4)
-
Step 400
400
#A597CB
oklch(70.7% 0.076 296.8)
-
Step 500
500
#8F7DBD
oklch(63.1% 0.096 296.5)
-
Step 600
600
#7965A9
oklch(55.5% 0.105 296.4)
-
Step 700
700
#665491
oklch(49.1% 0.097 296.2)
-
Step 800
800
#534576
oklch(42.7% 0.081 296)
-
Step 900
900
#453A5F
oklch(37.7% 0.063 296.9)
-
Step 950
950 (this color)
#312B41
oklch(30.6% 0.04 296.5)
#312B41 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) | #262E42 | 0.020 |
| Deuteranopia (no green cones) | #272E40 | 0.019 |
| Tritanopia (no blue cones) | #2E2F33 | 0.033 |
| Achromatopsia (no color) | #2E2E2E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312B41
#312B41
oklch(30.6% 0.04 296.5)
- #2E321A
#2E321A
oklch(30.6% 0.04 116.6)
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 #312B41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.012
- Gunmetal #293241 ΔE 0.025
- Oxford Blue #1B263B ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.050
- Onyx #343A40 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.054
- Dark #1B2431 ΔE 0.054
- Jet #212529 ΔE 0.055
Use #312B41 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.