#151127
Closest named color: Rich Black (#0D1B2A). oklch(19.5% 0.043 290.1), rgb(21, 17, 39).
Aa
White text reads best on this color (18.39:1).
About this color
#151127 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.043 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.035 away. White text reads best on it, at 18.39:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.39:1 |
Values
| HEX | #151127 |
| RGB | rgb(21, 17, 39) |
| HSL | hsl(251, 39%, 11%) |
| OKLCH | oklch(19.5% 0.043 290.1) |
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 #151127 | 18.39:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #151127 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #151127 text on white | 18.39:1 | AAA | Lc 105.0 | Preferred for body text |
| #151127 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
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#C0BCE0
oklch(81% 0.05 290.3)
-
Step 400
400
#A098D1
oklch(70.7% 0.083 290.6)
-
Step 500
500
#897EC5
oklch(63.2% 0.106 290.1)
-
Step 600
600
#7366B1
oklch(55.6% 0.114 290.1)
-
Step 700
700
#615598
oklch(49.2% 0.105 290.2)
-
Step 800
800
#4F457B
oklch(42.6% 0.088 290.7)
-
Step 900
900
#413B63
oklch(37.7% 0.067 289.6)
-
Step 950
950 (this color)
#151127
oklch(19.5% 0.043 290.1)
#151127 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) | #0A1528 | 0.022 |
| Deuteranopia (no green cones) | #0A1426 | 0.021 |
| Tritanopia (no blue cones) | #10151A | 0.035 |
| Achromatopsia (no color) | #141414 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151127
#151127
oklch(19.5% 0.043 290.1)
- #161600
#161600
oklch(19.4% 0.042 109.8)
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 #151127, 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 0.050
- Almost Black #070D0D ΔE 0.062
- Midnight Purple #280137 ΔE 0.065
- Very Dark Purple #2A0134 ΔE 0.066
- Dark #1B2431 ΔE 0.067
- Navy Blue #001146 ΔE 0.068
- Dark Navy #000435 ΔE 0.069
Use #151127 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.