#271C58
Closest named color: Dark Indigo (#1F0954). oklch(28% 0.103 286.1), rgb(39, 28, 88).
Aa
White text reads best on this color (15.07:1).
About this color
#271C58 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.103 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.045 away. White text reads best on it, at 15.07:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #271C58 |
| RGB | rgb(39, 28, 88) |
| HSL | hsl(251, 52%, 23%) |
| OKLCH | oklch(28% 0.103 286.1) |
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 #271C58 | 15.07:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #271C58 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #271C58 text on white | 15.07:1 | AAA | Lc 101.7 | Preferred for body text |
| #271C58 text on black | 1.39:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E7FF
oklch(93.5% 0.032 285.8)
-
Step 200
200
#D5D4FF
oklch(88.5% 0.059 286.2)
-
Step 300
300
#BBB7FF
oklch(80.9% 0.101 286.5)
-
Step 400
400
#9A8FFF
oklch(70.8% 0.16 286)
-
Step 500
500
#846DFF
oklch(63.2% 0.208 286)
-
Step 600
600
#7242FF
oklch(55.6% 0.258 286.1)
-
Step 700
700
#6129E5
oklch(49.1% 0.253 286)
-
Step 800
800
#4E26B8
oklch(42.6% 0.209 286)
-
Step 900
900
#402892
oklch(37.8% 0.163 286)
-
Step 950
950 (this color)
#271C58
oklch(28% 0.103 286.1)
#271C58 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) | #00285A | 0.052 |
| Deuteranopia (no green cones) | #002557 | 0.050 |
| Tritanopia (no blue cones) | #142A37 | 0.084 |
| Achromatopsia (no color) | #262626 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271C58
#271C58
oklch(28% 0.103 286.1)
- #2D2A00
#2D2A00
oklch(27.9% 0.059 105.5)
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 #271C58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.045
- Midnight Blue #191970 ΔE 0.050
- Marine #042E60 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.070
- Dark Purple #35063E ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.073
- Deep Purple #36013F ΔE 0.076
Use #271C58 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.