#2B1B3F
Closest named color: Oxford Blue (#1B263B). oklch(26.2% 0.067 302.5), rgb(43, 27, 63).
Aa
White text reads best on this color (15.77:1).
About this color
#2B1B3F is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.067 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 15.77:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.77:1 |
Values
| HEX | #2B1B3F |
| RGB | rgb(43, 27, 63) |
| HSL | hsl(267, 40%, 18%) |
| OKLCH | oklch(26.2% 0.067 302.5) |
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 #2B1B3F | 15.77:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #2B1B3F | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #2B1B3F text on white | 15.77:1 | AAA | Lc 102.6 | Preferred for body text |
| #2B1B3F text on black | 1.33:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F7
oklch(93.5% 0.024 304.5)
-
Step 200
200
#DED3F2
oklch(88.5% 0.044 301.7)
-
Step 300
300
#CAB5EC
oklch(80.9% 0.079 302.1)
-
Step 400
400
#B08CE2
oklch(70.7% 0.128 302.5)
-
Step 500
500
#9D6DDA
oklch(63.1% 0.163 302.3)
-
Step 600
600
#8952C7
oklch(55.6% 0.177 302.7)
-
Step 700
700
#7442AC
oklch(49.2% 0.164 302.5)
-
Step 800
800
#5E378B
oklch(42.7% 0.136 302.4)
-
Step 900
900
#4D316F
oklch(37.8% 0.105 302.5)
-
Step 950
950 (this color)
#2B1B3F
oklch(26.2% 0.067 302.5)
#2B1B3F 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) | #102240 | 0.048 |
| Deuteranopia (no green cones) | #14233E | 0.045 |
| Tritanopia (no blue cones) | #27222A | 0.051 |
| Achromatopsia (no color) | #232323 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1B3F
#2B1B3F
oklch(26.2% 0.067 302.5)
- #1F2900
#1F2900
oklch(26.2% 0.064 122.6)
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 #2B1B3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.045
- Dark Purple #35063E ΔE 0.049
- Eggplant #380835 ΔE 0.051
- Dark #1B2431 ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.056
- Aubergine #3D0734 ΔE 0.057
- Deep Purple #36013F ΔE 0.058
- Jet #212529 ΔE 0.062
Use #2B1B3F 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.