#271B42
Closest named color: Oxford Blue (#1B263B). oklch(25.9% 0.071 295.2), rgb(39, 27, 66).
Aa
White text reads best on this color (15.88:1).
About this color
#271B42 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.071 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.043 away. White text reads best on it, at 15.88:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #271B42 |
| RGB | rgb(39, 27, 66) |
| HSL | hsl(258, 42%, 18%) |
| OKLCH | oklch(25.9% 0.071 295.2) |
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 #271B42 | 15.88:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #271B42 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #271B42 text on white | 15.88:1 | AAA | Lc 102.7 | Preferred for body text |
| #271B42 text on black | 1.32:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD4F6
oklch(88.6% 0.047 294.9)
-
Step 300
300
#C4B6F2
oklch(80.9% 0.085 295.1)
-
Step 400
400
#A78EEB
oklch(70.6% 0.135 295.1)
-
Step 500
500
#936FE5
oklch(63.1% 0.172 295.1)
-
Step 600
600
#7F54D3
oklch(55.7% 0.187 295.3)
-
Step 700
700
#6B43B7
oklch(49.1% 0.175 295)
-
Step 800
800
#573894
oklch(42.7% 0.145 295.1)
-
Step 900
900
#473276
oklch(37.8% 0.112 294.7)
-
Step 950
950 (this color)
#271B42
oklch(25.9% 0.071 295.2)
#271B42 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) | #0B2243 | 0.045 |
| Deuteranopia (no green cones) | #0E2241 | 0.043 |
| Tritanopia (no blue cones) | #21232B | 0.057 |
| Achromatopsia (no color) | #222222 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271B42
#271B42
oklch(25.9% 0.071 295.2)
- #232700
#232700
oklch(26% 0.059 115.5)
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 #271B42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.043
- Dark #1B2431 ΔE 0.052
- Dark Purple #35063E ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.057
- Eggplant #380835 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.058
- Deep Purple #36013F ΔE 0.061
- Midnight Purple #280137 ΔE 0.064
Use #271B42 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.