#25243D
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.046 284.8), rgb(37, 36, 61).
Aa
White text reads best on this color (15.01:1).
About this color
#25243D is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.046 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.018 away. White text reads best on it, at 15.01:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.01:1 |
Values
| HEX | #25243D |
| RGB | rgb(37, 36, 61) |
| HSL | hsl(242, 26%, 19%) |
| OKLCH | oklch(27.4% 0.046 284.8) |
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 #25243D | 15.01:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #25243D | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #25243D text on white | 15.01:1 | AAA | Lc 101.9 | Preferred for body text |
| #25243D 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
#D6D7ED
oklch(88.5% 0.03 283.7)
-
Step 300
300
#BCBCE3
oklch(80.8% 0.055 285.1)
-
Step 400
400
#9A99D5
oklch(70.6% 0.087 284.7)
-
Step 500
500
#827FCA
oklch(63% 0.111 284.5)
-
Step 600
600
#6D67B7
oklch(55.6% 0.122 285.1)
-
Step 700
700
#5B569D
oklch(49.2% 0.111 284.7)
-
Step 800
800
#4A467F
oklch(42.6% 0.093 284.9)
-
Step 900
900
#3E3B66
oklch(37.6% 0.072 285.5)
-
Step 950
950 (this color)
#25243D
oklch(27.4% 0.046 284.8)
#25243D 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) | #1C273E | 0.016 |
| Deuteranopia (no green cones) | #1C263C | 0.016 |
| Tritanopia (no blue cones) | #1F292D | 0.040 |
| Achromatopsia (no color) | #272727 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25243D
#25243D
oklch(27.4% 0.046 284.8)
- #2B290B
#2B290B
oklch(27.6% 0.046 105.5)
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 #25243D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.018
- Dark #1B2431 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.032
- Jet #212529 ΔE 0.040
- Gunmetal #293241 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.064
- Marine #042E60 ΔE 0.071
Use #25243D 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.