#231A44
Closest named color: Oxford Blue (#1B263B). oklch(25.4% 0.076 289.8), rgb(35, 26, 68).
Aa
White text reads best on this color (16.12:1).
About this color
#231A44 is a dark, moderately saturated purple. In OKLCH its lightness is 25%, its chroma 0.076 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 16.12:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.12:1 |
Values
| HEX | #231A44 |
| RGB | rgb(35, 26, 68) |
| HSL | hsl(253, 45%, 18%) |
| OKLCH | oklch(25.4% 0.076 289.8) |
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 #231A44 | 16.12:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #231A44 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #231A44 text on white | 16.12:1 | AAA | Lc 102.9 | Preferred for body text |
| #231A44 text on black | 1.30:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F9
oklch(88.5% 0.051 290.3)
-
Step 300
300
#BFB7F7
oklch(80.8% 0.09 290)
-
Step 400
400
#A08FF3
oklch(70.6% 0.144 290)
-
Step 500
500
#8A70EF
oklch(63.1% 0.183 289.5)
-
Step 600
600
#7654DD
oklch(55.6% 0.199 289.8)
-
Step 700
700
#6443C0
oklch(49.1% 0.186 290)
-
Step 800
800
#51389B
oklch(42.6% 0.154 289.9)
-
Step 900
900
#42327C
oklch(37.7% 0.12 289.3)
-
Step 950
950 (this color)
#231A44
oklch(25.4% 0.076 289.8)
#231A44 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) | #052245 | 0.044 |
| Deuteranopia (no green cones) | #062043 | 0.043 |
| Tritanopia (no blue cones) | #19232C | 0.062 |
| Achromatopsia (no color) | #212121 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231A44
#231A44
oklch(25.4% 0.076 289.8)
- #252500
#252500
oklch(25.6% 0.056 109.8)
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 #231A44, 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 Indigo #1F0954 ΔE 0.049
- Dark #1B2431 ΔE 0.055
- Dark Purple #35063E ΔE 0.056
- Eggplant #380835 ΔE 0.063
- Midnight Purple #280137 ΔE 0.063
- Deep Purple #36013F ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.064
Use #231A44 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.