#231A49
Closest named color: Dark Indigo (#1F0954). oklch(25.8% 0.084 287.9), rgb(35, 26, 73).
Aa
White text reads best on this color (15.96:1).
About this color
#231A49 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.084 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.043 away. White text reads best on it, at 15.96:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.31:1 |
| White text | 15.96:1 |
Values
| HEX | #231A49 |
| RGB | rgb(35, 26, 73) |
| HSL | hsl(251, 47%, 19%) |
| OKLCH | oklch(25.8% 0.084 287.9) |
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 #231A49 | 15.96:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #231A49 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #231A49 text on white | 15.96:1 | AAA | Lc 102.7 | Preferred for body text |
| #231A49 text on black | 1.31:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FC
oklch(88.4% 0.055 287.5)
-
Step 300
300
#BDB7FE
oklch(81% 0.099 287.8)
-
Step 400
400
#9D8EFD
oklch(70.8% 0.159 287.8)
-
Step 500
500
#886DFB
oklch(63.2% 0.203 287.9)
-
Step 600
600
#734FEA
oklch(55.6% 0.221 287.6)
-
Step 700
700
#613ECB
oklch(49% 0.205 287.7)
-
Step 800
800
#4F35A4
oklch(42.7% 0.169 287.8)
-
Step 900
900
#413082
oklch(37.7% 0.132 287.9)
-
Step 950
950 (this color)
#231A49
oklch(25.8% 0.084 287.9)
#231A49 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) | #00234B | 0.048 |
| Deuteranopia (no green cones) | #002048 | 0.048 |
| Tritanopia (no blue cones) | #17252E | 0.070 |
| Achromatopsia (no color) | #222222 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231A49
#231A49
oklch(25.8% 0.084 287.9)
- #262500
#262500
oklch(25.7% 0.056 108.2)
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 #231A49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.050
- Dark Purple #35063E ΔE 0.058
- Dark #1B2431 ΔE 0.061
- Deep Purple #36013F ΔE 0.065
- Navy Blue #001146 ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.066
- Midnight Purple #280137 ΔE 0.067
Use #231A49 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.