#312B49
Closest named color: Space Cadet (#2B2D42). oklch(31% 0.053 292.2), rgb(49, 43, 73).
Aa
White text reads best on this color (13.35:1).
About this color
#312B49 is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.053 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.019 away. White text reads best on it, at 13.35:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.57:1 |
| White text | 13.35:1 |
Values
| HEX | #312B49 |
| RGB | rgb(49, 43, 73) |
| HSL | hsl(252, 26%, 23%) |
| OKLCH | oklch(31% 0.053 292.2) |
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 #312B49 | 13.35:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #312B49 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #312B49 text on white | 13.35:1 | AAA | Lc 99.7 | Preferred for body text |
| #312B49 text on black | 1.57:1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#D9D5EF
oklch(88.4% 0.036 292.7)
-
Step 300
300
#C1BAE7
oklch(81% 0.063 292.1)
-
Step 400
400
#A295DA
oklch(70.7% 0.1 292.3)
-
Step 500
500
#8C79D0
oklch(63% 0.129 292.3)
-
Step 600
600
#7761BD
oklch(55.7% 0.139 292.3)
-
Step 700
700
#644FA3
oklch(49% 0.13 292.4)
-
Step 800
800
#514184
oklch(42.6% 0.108 292.2)
-
Step 900
900
#43386A
oklch(37.7% 0.084 292)
-
Step 950
950 (this color)
#312B49
oklch(31% 0.053 292.2)
#312B49 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) | #23304A | 0.026 |
| Deuteranopia (no green cones) | #232F48 | 0.025 |
| Tritanopia (no blue cones) | #2C3036 | 0.044 |
| Achromatopsia (no color) | #2F2F2F | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312B49
#312B49
oklch(31% 0.053 292.2)
- #313310
#313310
oklch(31% 0.053 112.1)
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 #312B49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.019
- Gunmetal #293241 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.054
- Onyx #343A40 ΔE 0.057
- Dark #1B2431 ΔE 0.062
- Midnight Green #073B4C ΔE 0.064
Use #312B49 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.