#281939
Closest named color: Oxford Blue (#1B263B). oklch(25% 0.061 304), rgb(40, 25, 57).
Aa
White text reads best on this color (16.29:1).
About this color
#281939 is a very dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.061 and its hue 304°. 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 16.29:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.28:1 |
| White text | 16.29:1 |
Values
| HEX | #281939 |
| RGB | rgb(40, 25, 57) |
| HSL | hsl(268, 39%, 16%) |
| OKLCH | oklch(25% 0.061 304) |
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 #281939 | 16.29:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #281939 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #281939 text on white | 16.29:1 | AAA | Lc 103.1 | Preferred for body text |
| #281939 text on black | 1.28:1 | 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
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3EF
oklch(88.5% 0.04 304.9)
-
Step 300
300
#CAB6E7
oklch(80.9% 0.071 303.4)
-
Step 400
400
#B08EDB
oklch(70.7% 0.115 303.9)
-
Step 500
500
#9D70D1
oklch(63.1% 0.147 303.9)
-
Step 600
600
#8856BE
oklch(55.6% 0.16 303.8)
-
Step 700
700
#7445A4
oklch(49.1% 0.15 304.3)
-
Step 800
800
#5E3A85
oklch(42.7% 0.123 303.8)
-
Step 900
900
#4D326B
oklch(37.7% 0.098 304)
-
Step 950
950 (this color)
#281939
oklch(25% 0.061 304)
#281939 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) | #10203A | 0.044 |
| Deuteranopia (no green cones) | #142038 | 0.040 |
| Tritanopia (no blue cones) | #251F26 | 0.046 |
| Achromatopsia (no color) | #202020 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281939
#281939
oklch(25% 0.061 304)
- #1C2601
#1C2601
oklch(25% 0.06 123.5)
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 #281939, 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 #1B2431 ΔE 0.047
- Eggplant #380835 ΔE 0.049
- Dark Purple #35063E ΔE 0.050
- Aubergine #3D0734 ΔE 0.057
- Jet #212529 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.058
Use #281939 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.