#151128
Closest named color: Rich Black (#0D1B2A). oklch(19.6% 0.045 289.5), rgb(21, 17, 40).
Aa
White text reads best on this color (18.37:1).
About this color
#151128 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.045 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.035 away. White text reads best on it, at 18.37:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.37:1 |
Values
| HEX | #151128 |
| RGB | rgb(21, 17, 40) |
| HSL | hsl(250, 40%, 11%) |
| OKLCH | oklch(19.6% 0.045 289.5) |
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 #151128 | 18.37:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #151128 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #151128 text on white | 18.37:1 | AAA | Lc 105.0 | Preferred for body text |
| #151128 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6EC
oklch(88.4% 0.03 289.9)
-
Step 300
300
#BFBBE2
oklch(80.8% 0.055 289.8)
-
Step 400
400
#9F98D3
oklch(70.7% 0.086 289.5)
-
Step 500
500
#887DC7
oklch(63% 0.11 289.7)
-
Step 600
600
#7366B4
oklch(55.7% 0.119 289.6)
-
Step 700
700
#60549B
oklch(49.1% 0.111 289.4)
-
Step 800
800
#4E457D
oklch(42.6% 0.091 289.3)
-
Step 900
900
#413A65
oklch(37.6% 0.072 289.9)
-
Step 950
950 (this color)
#151128
oklch(19.6% 0.045 289.5)
#151128 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) | #091529 | 0.023 |
| Deuteranopia (no green cones) | #091427 | 0.022 |
| Tritanopia (no blue cones) | #10161A | 0.039 |
| Achromatopsia (no color) | #141414 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151128
#151128
oklch(19.6% 0.045 289.5)
- #171700
#171700
oklch(19.8% 0.043 109.8)
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 #151128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.035
- Rich Navy #001219 ΔE 0.052
- Midnight Purple #280137 ΔE 0.064
- Almost Black #070D0D ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.065
- Navy Blue #001146 ΔE 0.067
- Dark #1B2431 ΔE 0.067
- Dark Navy #000435 ΔE 0.069
Use #151128 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.