#121033
Closest named color: Rich Black (#0D1B2A). oklch(20% 0.067 281.1), rgb(18, 16, 51).
Aa
White text reads best on this color (18.29:1).
About this color
#121033 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.067 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 18.29:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.29:1 |
Values
| HEX | #121033 |
| RGB | rgb(18, 16, 51) |
| HSL | hsl(243, 52%, 13%) |
| OKLCH | oklch(20% 0.067 281.1) |
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 #121033 | 18.29:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #121033 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #121033 text on white | 18.29:1 | AAA | Lc 104.8 | Preferred for body text |
| #121033 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D3D6F6
oklch(88.4% 0.044 281.2)
-
Step 300
300
#B7BBF3
oklch(80.8% 0.079 281.3)
-
Step 400
400
#9396EE
oklch(70.7% 0.128 281.1)
-
Step 500
500
#7A7AE8
oklch(63.2% 0.162 280.7)
-
Step 600
600
#6560D6
oklch(55.7% 0.176 280.9)
-
Step 700
700
#544EB9
oklch(49% 0.163 281)
-
Step 800
800
#454196
oklch(42.8% 0.135 281.1)
-
Step 900
900
#393877
oklch(37.7% 0.105 280.8)
-
Step 950
950 (this color)
#121033
oklch(20% 0.067 281.1)
#121033 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) | #001634 | 0.030 |
| Deuteranopia (no green cones) | #001332 | 0.029 |
| Tritanopia (no blue cones) | #04181F | 0.057 |
| Achromatopsia (no color) | #151515 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121033
#121033
oklch(20% 0.067 281.1)
- #1A1600
#1A1600
oklch(19.9% 0.041 100.7)
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 #121033, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Navy Blue #001146 ΔE 0.045
- Dark Navy #000435 ΔE 0.055
- Night Blue #040348 ΔE 0.057
- Midnight Purple #280137 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.062
- Midnight #03012D ΔE 0.063
- Rich Navy #001219 ΔE 0.065
Use #121033 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.