#231E3C
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.055 289.6), rgb(35, 30, 60).
Aa
White text reads best on this color (15.87:1).
About this color
#231E3C is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.055 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 15.87:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.87:1 |
Values
| HEX | #231E3C |
| RGB | rgb(35, 30, 60) |
| HSL | hsl(250, 33%, 18%) |
| OKLCH | oklch(25.7% 0.055 289.6) |
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 #231E3C | 15.87:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #231E3C | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #231E3C text on white | 15.87:1 | AAA | Lc 102.8 | Preferred for body text |
| #231E3C text on black | 1.32:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#BFBAE9
oklch(80.9% 0.066 289.7)
-
Step 400
400
#9F95DE
oklch(70.6% 0.106 289.7)
-
Step 500
500
#897AD4
oklch(63.2% 0.133 289.7)
-
Step 600
600
#7361C2
oklch(55.6% 0.146 289.3)
-
Step 700
700
#6150A7
oklch(49.2% 0.134 289.5)
-
Step 800
800
#4F4287
oklch(42.8% 0.111 289.5)
-
Step 900
900
#41386C
oklch(37.6% 0.087 289.5)
-
Step 950
950 (this color)
#231E3C
oklch(25.7% 0.055 289.6)
#231E3C 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) | #14233D | 0.027 |
| Deuteranopia (no green cones) | #14213B | 0.026 |
| Tritanopia (no blue cones) | #1D242A | 0.046 |
| Achromatopsia (no color) | #222222 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231E3C
#231E3C
oklch(25.7% 0.055 289.6)
- #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 #231E3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.035
- Jet #212529 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.053
- Dark Purple #35063E ΔE 0.065
- Eggplant #380835 ΔE 0.066
- Gunmetal #293241 ΔE 0.067
Use #231E3C 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.