#231859
Closest named color: Dark Indigo (#1F0954). oklch(27% 0.111 283.9), rgb(35, 24, 89).
Aa
White text reads best on this color (15.59:1).
About this color
#231859 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.111 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.033 away. White text reads best on it, at 15.59:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.34:1 |
| White text | 15.59:1 |
Values
| HEX | #231859 |
| RGB | rgb(35, 24, 89) |
| HSL | hsl(250, 58%, 22%) |
| OKLCH | oklch(27% 0.111 283.9) |
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 #231859 | 15.59:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #231859 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #231859 text on white | 15.59:1 | AAA | Lc 102.2 | Preferred for body text |
| #231859 text on black | 1.34:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FF
oklch(93.7% 0.031 283.8)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9690FF
oklch(70.7% 0.159 284)
-
Step 500
500
#7F6FFF
oklch(63.1% 0.206 283.8)
-
Step 600
600
#6C46FF
oklch(55.6% 0.255 283.8)
-
Step 700
700
#5D1EF0
oklch(49.1% 0.271 283.7)
-
Step 800
800
#4B20C2
oklch(42.7% 0.225 283.6)
-
Step 900
900
#3D2598
oklch(37.7% 0.174 283.8)
-
Step 950
950 (this color)
#231859
oklch(27% 0.111 283.9)
#231859 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) | #00265B | 0.050 |
| Deuteranopia (no green cones) | #002158 | 0.046 |
| Tritanopia (no blue cones) | #082936 | 0.093 |
| Achromatopsia (no color) | #242424 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231859
#231859
oklch(27% 0.111 283.9)
- #2B2700
#2B2700
oklch(26.9% 0.057 103.7)
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 #231859, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.033
- Midnight Blue #191970 ΔE 0.045
- Marine #042E60 ΔE 0.064
- Darkblue #030764 ΔE 0.066
- Navy Blue #001146 ΔE 0.072
- Dark Royal Blue #02066F ΔE 0.072
- Dark Purple #35063E ΔE 0.072
- Oxford Blue #1B263B ΔE 0.073
Use #231859 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.