#271F4D
Closest named color: Oxford Blue (#1B263B). oklch(27.6% 0.082 287.8), rgb(39, 31, 77).
Aa
White text reads best on this color (15.11:1).
About this color
#271F4D is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.082 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.047 away. White text reads best on it, at 15.11:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.11:1 |
Values
| HEX | #271F4D |
| RGB | rgb(39, 31, 77) |
| HSL | hsl(250, 43%, 21%) |
| OKLCH | oklch(27.6% 0.082 287.8) |
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 #271F4D | 15.11:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #271F4D | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #271F4D text on white | 15.11:1 | AAA | Lc 101.8 | Preferred for body text |
| #271F4D 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D6D4FB
oklch(88.4% 0.053 287.6)
-
Step 300
300
#BDB7FC
oklch(80.9% 0.097 288)
-
Step 400
400
#9D8FFB
oklch(70.8% 0.155 287.7)
-
Step 500
500
#876EF8
oklch(63.1% 0.198 287.7)
-
Step 600
600
#7351E7
oklch(55.7% 0.215 287.7)
-
Step 700
700
#6140C8
oklch(49.1% 0.199 287.9)
-
Step 800
800
#4F36A2
oklch(42.7% 0.165 287.9)
-
Step 900
900
#413181
oklch(37.8% 0.129 287.8)
-
Step 950
950 (this color)
#271F4D
oklch(27.6% 0.082 287.8)
#271F4D 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) | #08274F | 0.044 |
| Deuteranopia (no green cones) | #08254C | 0.043 |
| Tritanopia (no blue cones) | #1B2932 | 0.068 |
| Achromatopsia (no color) | #262626 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271F4D
#271F4D
oklch(27.6% 0.082 287.8)
- #2B2A00
#2B2A00
oklch(27.7% 0.06 108.4)
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 #271F4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.055
- Marine #042E60 ΔE 0.061
- Dark #1B2431 ΔE 0.062
- Dark Purple #35063E ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.066
- Gunmetal #293241 ΔE 0.069
Use #271F4D 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.