#1C1A3E
Closest named color: Oxford Blue (#1B263B). oklch(24.2% 0.067 282.7), rgb(28, 26, 62).
Aa
White text reads best on this color (16.57:1).
About this color
#1C1A3E is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.067 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.041 away. White text reads best on it, at 16.57:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.26:1 |
| White text | 16.57:1 |
Values
| HEX | #1C1A3E |
| RGB | rgb(28, 26, 62) |
| HSL | hsl(243, 41%, 17%) |
| OKLCH | oklch(24.2% 0.067 282.7) |
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 #1C1A3E | 16.57:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #1C1A3E | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #1C1A3E text on white | 16.57:1 | AAA | Lc 103.4 | Preferred for body text |
| #1C1A3E text on black | 1.26:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B9BBF3
oklch(81% 0.079 282.9)
-
Step 400
400
#9695ED
oklch(70.7% 0.127 283.2)
-
Step 500
500
#7D79E7
oklch(63.1% 0.161 282.4)
-
Step 600
600
#685FD5
oklch(55.6% 0.175 282.5)
-
Step 700
700
#574DB8
oklch(49% 0.163 282.8)
-
Step 800
800
#474095
oklch(42.7% 0.135 282.8)
-
Step 900
900
#3B3777
oklch(37.6% 0.106 282.9)
-
Step 950
950 (this color)
#1C1A3E
oklch(24.2% 0.067 282.7)
#1C1A3E 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) | #09203F | 0.030 |
| Deuteranopia (no green cones) | #071D3D | 0.030 |
| Tritanopia (no blue cones) | #102229 | 0.057 |
| Achromatopsia (no color) | #1E1E1E | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1A3E
#1C1A3E
oklch(24.2% 0.067 282.7)
- #242000
#242000
oklch(24% 0.051 102.7)
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 #1C1A3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.041
- Dark #1B2431 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.055
- Navy Blue #001146 ΔE 0.056
- Jet #212529 ΔE 0.062
- Midnight Purple #280137 ΔE 0.065
- Dark Purple #35063E ΔE 0.066
Use #1C1A3E 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.