#271D4C
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.083 289.4), rgb(39, 29, 76).
Aa
White text reads best on this color (15.36:1).
About this color
#271D4C is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.083 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.049 away. White text reads best on it, at 15.36:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.36:1 |
Values
| HEX | #271D4C |
| RGB | rgb(39, 29, 76) |
| HSL | hsl(253, 45%, 21%) |
| OKLCH | oklch(27.1% 0.083 289.4) |
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 #271D4C | 15.36:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #271D4C | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #271D4C text on white | 15.36:1 | AAA | Lc 102.1 | Preferred for body text |
| #271D4C text on black | 1.36:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D7D4FC
oklch(88.5% 0.055 288.7)
-
Step 300
300
#BFB6FD
oklch(80.9% 0.1 289.8)
-
Step 400
400
#A08DFB
oklch(70.7% 0.157 289.7)
-
Step 500
500
#8B6CF9
oklch(63.2% 0.202 289.5)
-
Step 600
600
#774EE8
oklch(55.7% 0.22 289.5)
-
Step 700
700
#643DCA
oklch(49.1% 0.205 289.3)
-
Step 800
800
#5134A3
oklch(42.7% 0.169 289.2)
-
Step 900
900
#432F81
oklch(37.7% 0.132 289.8)
-
Step 950
950 (this color)
#271D4C
oklch(27.1% 0.083 289.4)
#271D4C 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) | #04264E | 0.049 |
| Deuteranopia (no green cones) | #05244B | 0.048 |
| Tritanopia (no blue cones) | #1C2731 | 0.068 |
| Achromatopsia (no color) | #252525 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271D4C
#271D4C
oklch(27.1% 0.083 289.4)
- #292900
#292900
oklch(27.2% 0.059 109.8)
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 #271D4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.057
- Dark Purple #35063E ΔE 0.060
- Dark #1B2431 ΔE 0.063
- Marine #042E60 ΔE 0.065
- Deep Purple #36013F ΔE 0.068
- Eggplant #380835 ΔE 0.069
Use #271D4C 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.