#1C1438
Closest named color: Rich Black (#0D1B2A). oklch(22.4% 0.067 290.1), rgb(28, 20, 56).
Aa
White text reads best on this color (17.40:1).
About this color
#1C1438 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.067 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.046 away. White text reads best on it, at 17.40:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #1C1438 |
| RGB | rgb(28, 20, 56) |
| HSL | hsl(253, 47%, 15%) |
| OKLCH | oklch(22.4% 0.067 290.1) |
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 #1C1438 | 17.40:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #1C1438 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #1C1438 text on white | 17.40:1 | AAA | Lc 104.1 | Preferred for body text |
| #1C1438 text on black | 1.20:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F5
oklch(88.5% 0.044 289.8)
-
Step 300
300
#BFB8F1
oklch(80.8% 0.08 290.1)
-
Step 400
400
#A092EA
oklch(70.7% 0.127 290.1)
-
Step 500
500
#8A74E3
oklch(63% 0.162 290.1)
-
Step 600
600
#755AD1
oklch(55.6% 0.176 289.9)
-
Step 700
700
#6349B5
oklch(49.1% 0.164 290.1)
-
Step 800
800
#513C93
oklch(42.7% 0.137 290.5)
-
Step 900
900
#423575
oklch(37.7% 0.106 289.7)
-
Step 950
950 (this color)
#1C1438
oklch(22.4% 0.067 290.1)
#1C1438 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) | #031B39 | 0.040 |
| Deuteranopia (no green cones) | #041937 | 0.038 |
| Tritanopia (no blue cones) | #141C23 | 0.056 |
| Achromatopsia (no color) | #1A1A1A | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1438
#1C1438
oklch(22.4% 0.067 290.1)
- #1D1D00
#1D1D00
oklch(22.3% 0.049 109.8)
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 #1C1438, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.046
- Midnight Purple #280137 ΔE 0.050
- Very Dark Purple #2A0134 ΔE 0.053
- Navy Blue #001146 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.057
- Dark #1B2431 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.057
- Dark Purple #35063E ΔE 0.062
Use #1C1438 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.