#301F40
Closest named color: Space Cadet (#2B2D42). oklch(27.7% 0.062 306.5), rgb(48, 31, 64).
Aa
White text reads best on this color (15.04:1).
About this color
#301F40 is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.062 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.043 away. White text reads best on it, at 15.04:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.39:1 |
| White text | 15.04:1 |
Values
| HEX | #301F40 |
| RGB | rgb(48, 31, 64) |
| HSL | hsl(271, 35%, 19%) |
| OKLCH | oklch(27.7% 0.062 306.5) |
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 #301F40 | 15.04:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #301F40 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #301F40 text on white | 15.04:1 | AAA | Lc 101.8 | Preferred for body text |
| #301F40 text on black | 1.39:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE6F5
oklch(93.5% 0.021 306.8)
-
Step 200
200
#E0D3EF
oklch(88.6% 0.04 306.5)
-
Step 300
300
#CDB5E7
oklch(81% 0.074 306.6)
-
Step 400
400
#B38CDA
oklch(70.6% 0.118 306.5)
-
Step 500
500
#A16ED0
oklch(63.1% 0.15 306.6)
-
Step 600
600
#8C53BD
oklch(55.5% 0.165 306.6)
-
Step 700
700
#7743A3
oklch(49% 0.153 306.6)
-
Step 800
800
#613884
oklch(42.7% 0.126 306.7)
-
Step 900
900
#4F316A
oklch(37.7% 0.099 306.6)
-
Step 950
950 (this color)
#301F40
oklch(27.7% 0.062 306.5)
#301F40 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) | #172641 | 0.046 |
| Deuteranopia (no green cones) | #1B273F | 0.043 |
| Tritanopia (no blue cones) | #2E242C | 0.045 |
| Achromatopsia (no color) | #262626 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #301F40
#301F40
oklch(27.7% 0.062 306.5)
- #202D06
#202D06
oklch(27.6% 0.062 126.2)
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 #301F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.044
- Dark #1B2431 ΔE 0.052
- Eggplant #380835 ΔE 0.056
- Dark Purple #35063E ΔE 0.057
- Aubergine #3D0734 ΔE 0.059
- Jet #212529 ΔE 0.060
- Gunmetal #293241 ΔE 0.061
Use #301F40 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.