#281739
Closest named color: Dark Purple (#35063E). oklch(24.6% 0.065 305.2), rgb(40, 23, 57).
Aa
White text reads best on this color (16.51:1).
About this color
#281739 is a very dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.065 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Purple (#35063E), ΔE 0.045 away. White text reads best on it, at 16.51:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | muted (0.065) |
| Temperature | in between |
| Nearest name | Dark Purple (#35063E) |
| Black text | 1.27:1 |
| White text | 16.51:1 |
Values
| HEX | #281739 |
| RGB | rgb(40, 23, 57) |
| HSL | hsl(270, 43%, 16%) |
| OKLCH | oklch(24.6% 0.065 305.2) |
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 #281739 | 16.51:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #281739 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #281739 text on white | 16.51:1 | AAA | Lc 103.3 | Preferred for body text |
| #281739 text on black | 1.27:1 | 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
#EDE6F6
oklch(93.5% 0.023 305.6)
-
Step 200
200
#E0D3F0
oklch(88.6% 0.042 305.8)
-
Step 300
300
#CCB4E9
oklch(80.8% 0.078 305.3)
-
Step 400
400
#B38CDE
oklch(70.7% 0.123 305.3)
-
Step 500
500
#A06DD5
oklch(63.1% 0.158 305)
-
Step 600
600
#8B52C2
oklch(55.5% 0.172 304.9)
-
Step 700
700
#7742A7
oklch(49.2% 0.159 305.5)
-
Step 800
800
#603787
oklch(42.6% 0.131 305.1)
-
Step 900
900
#4F316C
oklch(37.8% 0.101 305.6)
-
Step 950
950 (this color)
#281739
oklch(24.6% 0.065 305.2)
#281739 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) | #0D1E3A | 0.049 |
| Deuteranopia (no green cones) | #121F38 | 0.045 |
| Tritanopia (no blue cones) | #251D25 | 0.048 |
| Achromatopsia (no color) | #1F1F1F | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281739
#281739
oklch(24.6% 0.065 305.2)
- #1A2500
#1A2500
oklch(24.5% 0.061 124.6)
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 #281739, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Purple #35063E ΔE 0.045
- Eggplant #380835 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.050
- Dark #1B2431 ΔE 0.052
- Very Dark Purple #2A0134 ΔE 0.052
- Midnight Purple #280137 ΔE 0.053
- Deep Purple #36013F ΔE 0.054
- Aubergine #3D0734 ΔE 0.055
Use #281739 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.