#121228
Closest named color: Rich Black (#0D1B2A). oklch(19.5% 0.044 281.6), rgb(18, 18, 40).
Aa
White text reads best on this color (18.37:1).
About this color
#121228 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.044 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.031 away. White text reads best on it, at 18.37:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.37:1 |
Values
| HEX | #121228 |
| RGB | rgb(18, 18, 40) |
| HSL | hsl(240, 38%, 11%) |
| OKLCH | oklch(19.5% 0.044 281.6) |
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 #121228 | 18.37:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #121228 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #121228 text on white | 18.37:1 | AAA | Lc 105.0 | Preferred for body text |
| #121228 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D7EC
oklch(88.4% 0.029 281.5)
-
Step 300
300
#BABDE2
oklch(80.8% 0.052 281.5)
-
Step 400
400
#989BD3
oklch(70.8% 0.082 281.7)
-
Step 500
500
#7F81C8
oklch(63.1% 0.106 281.7)
-
Step 600
600
#696AB4
oklch(55.7% 0.113 281.5)
-
Step 700
700
#57589B
oklch(49.1% 0.106 281.1)
-
Step 800
800
#47487E
oklch(42.7% 0.088 281.2)
-
Step 900
900
#3C3D65
oklch(37.8% 0.068 281.6)
-
Step 950
950 (this color)
#121228
oklch(19.5% 0.044 281.6)
#121228 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) | #0A1529 | 0.015 |
| Deuteranopia (no green cones) | #091427 | 0.016 |
| Tritanopia (no blue cones) | #0B161B | 0.036 |
| Achromatopsia (no color) | #141414 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121228
#121228
oklch(19.5% 0.044 281.6)
- #191500
#191500
oklch(19.5% 0.041 100.4)
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 #121228, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.031
- Rich Navy #001219 ΔE 0.047
- Almost Black #070D0D ΔE 0.062
- Navy Blue #001146 ΔE 0.064
- Dark Navy #000435 ΔE 0.066
- Dark #1B2431 ΔE 0.066
- Midnight Purple #280137 ΔE 0.070
- Midnight #03012D ΔE 0.070
Use #121228 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.