#1C152F
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.05 294.3), rgb(28, 21, 47).
Aa
White text reads best on this color (17.53:1).
About this color
#1C152F is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.050 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.034 away. White text reads best on it, at 17.53:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.53:1 |
Values
| HEX | #1C152F |
| RGB | rgb(28, 21, 47) |
| HSL | hsl(256, 38%, 13%) |
| OKLCH | oklch(21.9% 0.05 294.3) |
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 #1C152F | 17.53:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #1C152F | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #1C152F text on white | 17.53:1 | AAA | Lc 104.3 | Preferred for body text |
| #1C152F text on black | 1.19:1 | 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
#F5F4FA
oklch(97% 0.008 293.9)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5ED
oklch(88.4% 0.033 295.3)
-
Step 300
300
#C2BAE4
oklch(80.9% 0.059 293.8)
-
Step 400
400
#A495D6
oklch(70.7% 0.095 294.4)
-
Step 500
500
#8E7ACB
oklch(63.1% 0.12 294)
-
Step 600
600
#7961B8
oklch(55.6% 0.132 294.4)
-
Step 700
700
#66509E
oklch(49.1% 0.122 294.5)
-
Step 800
800
#534280
oklch(42.7% 0.101 294.4)
-
Step 900
900
#443867
oklch(37.6% 0.079 294)
-
Step 950
950 (this color)
#1C152F
oklch(21.9% 0.05 294.3)
#1C152F 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) | #0C1A30 | 0.030 |
| Deuteranopia (no green cones) | #0E192E | 0.027 |
| Tritanopia (no blue cones) | #181A1F | 0.041 |
| Achromatopsia (no color) | #191919 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C152F
#1C152F
oklch(21.9% 0.05 294.3)
- #1A1D00
#1A1D00
oklch(22% 0.05 115.1)
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 #1C152F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.034
- Dark #1B2431 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.057
- Midnight Purple #280137 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.058
- Jet #212529 ΔE 0.062
- Navy Blue #001146 ΔE 0.066
- Eggplant #380835 ΔE 0.068
Use #1C152F 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.