#281C3C
Closest named color: Oxford Blue (#1B263B). oklch(25.8% 0.06 299.5), rgb(40, 28, 60).
Aa
White text reads best on this color (15.89:1).
About this color
#281C3C is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.060 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 0.038 away. White text reads best on it, at 15.89:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.060) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.89:1 |
Values
| HEX | #281C3C |
| RGB | rgb(40, 28, 60) |
| HSL | hsl(263, 36%, 17%) |
| OKLCH | oklch(25.8% 0.06 299.5) |
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 #281C3C | 15.89:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #281C3C | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #281C3C text on white | 15.89:1 | AAA | Lc 102.8 | Preferred for body text |
| #281C3C 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C7B7E8
oklch(80.9% 0.07 299.8)
-
Step 400
400
#AB90DD
oklch(70.7% 0.113 299.6)
-
Step 500
500
#9773D4
oklch(63.2% 0.145 299.4)
-
Step 600
600
#8259C1
oklch(55.6% 0.158 299.4)
-
Step 700
700
#6E48A6
oklch(49% 0.147 299.6)
-
Step 800
800
#5A3C87
oklch(42.8% 0.122 299.7)
-
Step 900
900
#49346C
oklch(37.7% 0.095 299.1)
-
Step 950
950 (this color)
#281C3C
oklch(25.8% 0.06 299.5)
#281C3C 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) | #12223D | 0.039 |
| Deuteranopia (no green cones) | #15223B | 0.036 |
| Tritanopia (no blue cones) | #242229 | 0.047 |
| Achromatopsia (no color) | #222222 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281C3C
#281C3C
oklch(25.8% 0.06 299.5)
- #202701
#202701
oklch(25.7% 0.059 119.6)
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 #281C3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.038
- Dark #1B2431 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.054
- Jet #212529 ΔE 0.054
- Dark Purple #35063E ΔE 0.055
- Eggplant #380835 ΔE 0.055
- Rich Black #0D1B2A ΔE 0.060
- Aubergine #3D0734 ΔE 0.062
Use #281C3C 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.