#1C101E
Closest named color: Rich Black (#0D1B2A). oklch(19.6% 0.033 321.6), rgb(28, 16, 30).
Aa
White text reads best on this color (18.38:1).
About this color
#1C101E is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.033 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.045 away. White text reads best on it, at 18.38:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.38:1 |
Values
| HEX | #1C101E |
| RGB | rgb(28, 16, 30) |
| HSL | hsl(291, 30%, 9%) |
| OKLCH | oklch(19.6% 0.033 321.6) |
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 #1C101E | 18.38:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #1C101E | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #1C101E text on white | 18.38:1 | AAA | Lc 105.0 | Preferred for body text |
| #1C101E text on black | 1.14:1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE7EE
oklch(93.5% 0.011 321.3)
-
Step 200
200
#E0D5E2
oklch(88.6% 0.021 321)
-
Step 300
300
#CDB9D0
oklch(81% 0.039 321.8)
-
Step 400
400
#B394B8
oklch(70.6% 0.062 321.6)
-
Step 500
500
#A07AA6
oklch(63.2% 0.078 321.8)
-
Step 600
600
#8B6292
oklch(55.6% 0.087 321.5)
-
Step 700
700
#76517C
oklch(49.1% 0.08 321.8)
-
Step 800
800
#604265
oklch(42.6% 0.068 321.6)
-
Step 900
900
#4E3852
oklch(37.6% 0.052 321.2)
-
Step 950
950 (this color)
#1C101E
oklch(19.6% 0.033 321.6)
#1C101E 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) | #0E131F | 0.029 |
| Deuteranopia (no green cones) | #11151E | 0.027 |
| Tritanopia (no blue cones) | #1C1215 | 0.022 |
| Achromatopsia (no color) | #141414 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C101E
#1C101E
oklch(19.6% 0.033 321.6)
- #0C190B
#0C190B
oklch(19.6% 0.033 142.6)
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 #1C101E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.045
- Rich Navy #001219 ΔE 0.056
- Almost Black #070D0D ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.067
- Midnight Purple #280137 ΔE 0.070
- Dark #1B2431 ΔE 0.070
- Very Dark Brown #1D0200 ΔE 0.070
- Jet #212529 ΔE 0.073
Use #1C101E 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.