#301F3B
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.055 311.1), rgb(48, 31, 59).
Aa
White text reads best on this color (15.16:1).
About this color
#301F3B is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.055 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.042 away. White text reads best on it, at 15.16:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.16:1 |
Values
| HEX | #301F3B |
| RGB | rgb(48, 31, 59) |
| HSL | hsl(276, 31%, 18%) |
| OKLCH | oklch(27.4% 0.055 311.1) |
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 #301F3B | 15.16:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #301F3B | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #301F3B text on white | 15.16:1 | AAA | Lc 102.0 | Preferred for body text |
| #301F3B text on black | 1.38:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F3
oklch(93.7% 0.018 311.6)
-
Step 200
200
#E1D3EB
oklch(88.5% 0.036 311.4)
-
Step 300
300
#CEB5E0
oklch(80.8% 0.065 311)
-
Step 400
400
#B68ED0
oklch(70.8% 0.103 311.5)
-
Step 500
500
#A370C4
oklch(63% 0.133 311)
-
Step 600
600
#8E57B0
oklch(55.6% 0.144 311.1)
-
Step 700
700
#794798
oklch(49.2% 0.134 310.9)
-
Step 800
800
#623A7B
oklch(42.6% 0.112 310.9)
-
Step 900
900
#503363
oklch(37.7% 0.086 310.7)
-
Step 950
950 (this color)
#301F3B
oklch(27.4% 0.055 311.1)
#301F3B 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) | #19253C | 0.043 |
| Deuteranopia (no green cones) | #1E263A | 0.038 |
| Tritanopia (no blue cones) | #2F232A | 0.038 |
| Achromatopsia (no color) | #262626 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #301F3B
#301F3B
oklch(27.4% 0.055 311.1)
- #1E2D0E
#1E2D0E
oklch(27.5% 0.055 130.8)
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 #301F3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.043
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.053
- Eggplant #380835 ΔE 0.055
- Aubergine #3D0734 ΔE 0.058
- Dark Purple #35063E ΔE 0.059
- Gunmetal #293241 ΔE 0.060
Use #301F3B 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.