#271B47
Closest named color: Oxford Blue (#1B263B). oklch(26.3% 0.079 292.7), rgb(39, 27, 71).
Aa
White text reads best on this color (15.74:1).
About this color
#271B47 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.079 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.048 away. White text reads best on it, at 15.74:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.74:1 |
Values
| HEX | #271B47 |
| RGB | rgb(39, 27, 71) |
| HSL | hsl(256, 45%, 19%) |
| OKLCH | oklch(26.3% 0.079 292.7) |
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 #271B47 | 15.74:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #271B47 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #271B47 text on white | 15.74:1 | AAA | Lc 102.5 | Preferred for body text |
| #271B47 text on black | 1.33:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3F9
oklch(88.4% 0.052 293.7)
-
Step 300
300
#C2B6F8
oklch(80.9% 0.093 292.5)
-
Step 400
400
#A58DF5
oklch(70.8% 0.149 292.8)
-
Step 500
500
#906CF1
oklch(63.1% 0.192 292.5)
-
Step 600
600
#7C4FDF
oklch(55.6% 0.208 292.7)
-
Step 700
700
#693EC2
oklch(49.1% 0.194 292.8)
-
Step 800
800
#55359D
oklch(42.7% 0.16 292.4)
-
Step 900
900
#46307D
oklch(37.8% 0.125 292.6)
-
Step 950
950 (this color)
#271B47
oklch(26.3% 0.079 292.7)
#271B47 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) | #062348 | 0.049 |
| Deuteranopia (no green cones) | #082246 | 0.047 |
| Tritanopia (no blue cones) | #1F242E | 0.062 |
| Achromatopsia (no color) | #232323 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271B47
#271B47
oklch(26.3% 0.079 292.7)
- #252700
#252700
oklch(26.2% 0.058 112.7)
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 #271B47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.050
- Dark Purple #35063E ΔE 0.054
- Dark #1B2431 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Eggplant #380835 ΔE 0.061
- Deep Purple #36013F ΔE 0.062
- Midnight Purple #280137 ΔE 0.067
Use #271B47 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.