#271B5D
Closest named color: Midnight Blue (#191970). oklch(28.3% 0.112 285), rgb(39, 27, 93).
Aa
White text reads best on this color (14.98:1).
About this color
#271B5D is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.112 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.042 away. White text reads best on it, at 14.98:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.40:1 |
| White text | 14.98:1 |
Values
| HEX | #271B5D |
| RGB | rgb(39, 27, 93) |
| HSL | hsl(251, 55%, 24%) |
| OKLCH | oklch(28.3% 0.112 285) |
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 #271B5D | 14.98:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #271B5D | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #271B5D text on white | 14.98:1 | AAA | Lc 101.5 | Preferred for body text |
| #271B5D text on black | 1.40:1 | 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
#D4D4FF
oklch(88.4% 0.059 285.1)
-
Step 300
300
#BAB8FF
oklch(81% 0.1 285.2)
-
Step 400
400
#988FFF
oklch(70.7% 0.16 285.2)
-
Step 500
500
#826EFF
oklch(63.2% 0.207 285.1)
-
Step 600
600
#6F44FF
oklch(55.6% 0.257 285)
-
Step 700
700
#6019F0
oklch(49.1% 0.273 284.9)
-
Step 800
800
#4E1DC2
oklch(42.7% 0.227 285.1)
-
Step 900
900
#3F2399
oklch(37.7% 0.177 284.9)
-
Step 950
950 (this color)
#271B5D
oklch(28.3% 0.112 285)
#271B5D 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) | #00295F | 0.053 |
| Deuteranopia (no green cones) | #00255C | 0.050 |
| Tritanopia (no blue cones) | #102C39 | 0.094 |
| Achromatopsia (no color) | #272727 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271B5D
#271B5D
oklch(28.3% 0.112 285)
- #2E2B00
#2E2B00
oklch(28.3% 0.06 105.5)
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 #271B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.042
- Dark Indigo #1F0954 ΔE 0.045
- Marine #042E60 ΔE 0.059
- Darkblue #030764 ΔE 0.074
- Prussian Blue #1D3557 ΔE 0.076
- Oxford Blue #1B263B ΔE 0.076
- Dark Purple #35063E ΔE 0.076
- Dark Royal Blue #02066F ΔE 0.077
Use #271B5D 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.