#271B4D
Closest named color: Dark Indigo (#1F0954). oklch(26.8% 0.088 290.2), rgb(39, 27, 77).
Aa
White text reads best on this color (15.55:1).
About this color
#271B4D is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.088 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.045 away. White text reads best on it, at 15.55:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.35:1 |
| White text | 15.55:1 |
Values
| HEX | #271B4D |
| RGB | rgb(39, 27, 77) |
| HSL | hsl(254, 48%, 20%) |
| OKLCH | oklch(26.8% 0.088 290.2) |
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 #271B4D | 15.55:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #271B4D | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #271B4D text on white | 15.55:1 | AAA | Lc 102.3 | Preferred for body text |
| #271B4D text on black | 1.35:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D8D3FE
oklch(88.5% 0.059 290.5)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8D68FE
oklch(63.1% 0.213 290.3)
-
Step 600
600
#7949EE
oklch(55.7% 0.232 290.1)
-
Step 700
700
#6638CF
oklch(49.1% 0.216 290)
-
Step 800
800
#5330A7
oklch(42.7% 0.179 290.2)
-
Step 900
900
#442D84
oklch(37.7% 0.139 290.3)
-
Step 950
950 (this color)
#271B4D
oklch(26.8% 0.088 290.2)
#271B4D 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) | #00254F | 0.054 |
| Deuteranopia (no green cones) | #00234C | 0.053 |
| Tritanopia (no blue cones) | #1C2631 | 0.071 |
| Achromatopsia (no color) | #242424 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271B4D
#271B4D
oklch(26.8% 0.088 290.2)
- #282800
#282800
oklch(26.8% 0.058 109.8)
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 #271B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.054
- Dark Purple #35063E ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.063
- Deep Purple #36013F ΔE 0.064
- Dark #1B2431 ΔE 0.067
- Eggplant #380835 ΔE 0.068
- Marine #042E60 ΔE 0.068
Use #271B4D 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.