#24243B
Closest named color: Oxford Blue (#1B263B). oklch(27.2% 0.042 283.2), rgb(36, 36, 59).
Aa
White text reads best on this color (15.10:1).
About this color
#24243B is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.042 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.015 away. White text reads best on it, at 15.10:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.10:1 |
Values
| HEX | #24243B |
| RGB | rgb(36, 36, 59) |
| HSL | hsl(240, 24%, 19%) |
| OKLCH | oklch(27.2% 0.042 283.2) |
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 #24243B | 15.10:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #24243B | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #24243B text on white | 15.10:1 | AAA | Lc 102.0 | Preferred for body text |
| #24243B text on black | 1.39:1 | 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
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7EC
oklch(88.5% 0.029 283.6)
-
Step 300
300
#BBBDE1
oklch(80.9% 0.051 282.7)
-
Step 400
400
#999AD2
oklch(70.6% 0.081 283.3)
-
Step 500
500
#8181C6
oklch(63.2% 0.103 283.1)
-
Step 600
600
#6B69B2
oklch(55.5% 0.112 283.4)
-
Step 700
700
#595799
oklch(49% 0.104 283.2)
-
Step 800
800
#49487C
oklch(42.7% 0.085 283.1)
-
Step 900
900
#3D3C64
oklch(37.6% 0.068 283.8)
-
Step 950
950 (this color)
#24243B
oklch(27.2% 0.042 283.2)
#24243B 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) | #1D273C | 0.014 |
| Deuteranopia (no green cones) | #1C253A | 0.014 |
| Tritanopia (no blue cones) | #1E282C | 0.037 |
| Achromatopsia (no color) | #262626 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24243B
#24243B
oklch(27.2% 0.042 283.2)
- #2B280D
#2B280D
oklch(27.3% 0.043 103)
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 #24243B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.015
- Dark #1B2431 ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.033
- Jet #212529 ΔE 0.036
- Gunmetal #293241 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.066
- Marine #042E60 ΔE 0.073
Use #24243B 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.