#28243E
Closest named color: Oxford Blue (#1B263B). oklch(27.8% 0.047 290), rgb(40, 36, 62).
Aa
White text reads best on this color (14.87:1).
About this color
#28243E is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.047 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 14.87:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.87:1 |
Values
| HEX | #28243E |
| RGB | rgb(40, 36, 62) |
| HSL | hsl(249, 27%, 19%) |
| OKLCH | oklch(27.8% 0.047 290) |
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 #28243E | 14.87:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #28243E | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #28243E text on white | 14.87:1 | AAA | Lc 101.7 | Preferred for body text |
| #28243E text on black | 1.41:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BFBBE3
oklch(80.8% 0.056 289.7)
-
Step 400
400
#9F97D5
oklch(70.6% 0.09 289.8)
-
Step 500
500
#897CCA
oklch(63% 0.116 290.3)
-
Step 600
600
#7364B7
oklch(55.5% 0.126 290)
-
Step 700
700
#61539D
oklch(49.1% 0.116 290.2)
-
Step 800
800
#4F447F
oklch(42.6% 0.096 290.3)
-
Step 900
900
#413A66
oklch(37.7% 0.074 289.7)
-
Step 950
950 (this color)
#28243E
oklch(27.8% 0.047 290)
#28243E 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) | #1C283F | 0.022 |
| Deuteranopia (no green cones) | #1D273D | 0.020 |
| Tritanopia (no blue cones) | #23292E | 0.040 |
| Achromatopsia (no color) | #272727 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28243E
#28243E
oklch(27.8% 0.047 290)
- #2A2A0C
#2A2A0C
oklch(27.7% 0.047 109.1)
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 #28243E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.030
- Dark #1B2431 ΔE 0.034
- Jet #212529 ΔE 0.044
- Gunmetal #293241 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.067
- Marine #042E60 ΔE 0.072
Use #28243E 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.