#2B1B3E
Closest named color: Oxford Blue (#1B263B). oklch(26.1% 0.066 303.3), rgb(43, 27, 62).
Aa
White text reads best on this color (15.80:1).
About this color
#2B1B3E is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.066 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 0.044 away. White text reads best on it, at 15.80:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.80:1 |
Values
| HEX | #2B1B3E |
| RGB | rgb(43, 27, 62) |
| HSL | hsl(267, 39%, 17%) |
| OKLCH | oklch(26.1% 0.066 303.3) |
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 #2B1B3E | 15.80:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #2B1B3E | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #2B1B3E text on white | 15.80:1 | AAA | Lc 102.6 | Preferred for body text |
| #2B1B3E text on black | 1.32:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F7
oklch(93.7% 0.022 302.9)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5EA
oklch(80.9% 0.077 303.6)
-
Step 400
400
#B18CE0
oklch(70.7% 0.125 303.6)
-
Step 500
500
#9E6DD7
oklch(63% 0.16 303.5)
-
Step 600
600
#8953C4
oklch(55.6% 0.172 303.3)
-
Step 700
700
#7442AA
oklch(49% 0.162 303)
-
Step 800
800
#5F3789
oklch(42.6% 0.133 303.8)
-
Step 900
900
#4D316E
oklch(37.7% 0.104 303)
-
Step 950
950 (this color)
#2B1B3E
oklch(26.1% 0.066 303.3)
#2B1B3E 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) | #10223F | 0.048 |
| Deuteranopia (no green cones) | #15233D | 0.044 |
| Tritanopia (no blue cones) | #282129 | 0.049 |
| Achromatopsia (no color) | #232323 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1B3E
#2B1B3E
oklch(26.1% 0.066 303.3)
- #1E2900
#1E2900
oklch(26.1% 0.065 123.7)
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 #2B1B3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.044
- Dark Purple #35063E ΔE 0.049
- Eggplant #380835 ΔE 0.050
- Dark #1B2431 ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.056
- Aubergine #3D0734 ΔE 0.057
- Deep Purple #36013F ΔE 0.058
- Jet #212529 ΔE 0.061
Use #2B1B3E 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.