#271B3A
Closest named color: Oxford Blue (#1B263B). oklch(25.3% 0.058 300.1), rgb(39, 27, 58).
Aa
White text reads best on this color (16.10:1).
About this color
#271B3A is a dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.058 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.039 away. White text reads best on it, at 16.10:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.10:1 |
Values
| HEX | #271B3A |
| RGB | rgb(39, 27, 58) |
| HSL | hsl(263, 36%, 17%) |
| OKLCH | oklch(25.3% 0.058 300.1) |
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 #271B3A | 16.10:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #271B3A | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #271B3A text on white | 16.10:1 | AAA | Lc 103.0 | Preferred for body text |
| #271B3A text on black | 1.30:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C7B7E7
oklch(80.9% 0.069 300.1)
-
Step 400
400
#AB90DB
oklch(70.6% 0.111 300.1)
-
Step 500
500
#9773D1
oklch(63% 0.141 300.1)
-
Step 600
600
#825ABE
oklch(55.6% 0.152 299.9)
-
Step 700
700
#6E49A4
oklch(49% 0.142 299.9)
-
Step 800
800
#5A3C85
oklch(42.6% 0.119 300.4)
-
Step 900
900
#4A346B
oklch(37.7% 0.093 300.5)
-
Step 950
950 (this color)
#271B3A
oklch(25.3% 0.058 300.1)
#271B3A 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) | #12213B | 0.038 |
| Deuteranopia (no green cones) | #142139 | 0.037 |
| Tritanopia (no blue cones) | #232127 | 0.047 |
| Achromatopsia (no color) | #212121 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #271B3A
#271B3A
oklch(25.3% 0.058 300.1)
- #1F2601
#1F2601
oklch(25.3% 0.058 119.8)
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 #271B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.039
- Dark #1B2431 ΔE 0.042
- Jet #212529 ΔE 0.054
- Eggplant #380835 ΔE 0.054
- Dark Purple #35063E ΔE 0.055
- Rich Black #0D1B2A ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.058
- Aubergine #3D0734 ΔE 0.062
Use #271B3A 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.