#151033
Closest named color: Rich Black (#0D1B2A). oklch(20.3% 0.066 285.4), rgb(21, 16, 51).
Aa
White text reads best on this color (18.20:1).
About this color
#151033 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.066 and its hue 285°. 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 18.20:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.20:1 |
Values
| HEX | #151033 |
| RGB | rgb(21, 16, 51) |
| HSL | hsl(249, 52%, 13%) |
| OKLCH | oklch(20.3% 0.066 285.4) |
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 #151033 | 18.20:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #151033 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #151033 text on white | 18.20:1 | AAA | Lc 104.7 | Preferred for body text |
| #151033 text on black | 1.15:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F6
oklch(88.6% 0.044 285.5)
-
Step 300
300
#BBBAF2
oklch(80.9% 0.079 285.3)
-
Step 400
400
#9994EB
oklch(70.6% 0.126 285.3)
-
Step 500
500
#8277E5
oklch(63% 0.161 285.4)
-
Step 600
600
#6D5DD3
oklch(55.5% 0.175 285.4)
-
Step 700
700
#5C4CB7
oklch(49.2% 0.162 285.6)
-
Step 800
800
#4B3F94
oklch(42.7% 0.134 285.7)
-
Step 900
900
#3E3676
oklch(37.6% 0.106 285.8)
-
Step 950
950 (this color)
#151033
oklch(20.3% 0.066 285.4)
#151033 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 | 0.035 |
| Deuteranopia (no green cones) | #001432 | 0.035 |
| Tritanopia (no blue cones) | #0A181F | 0.056 |
| Achromatopsia (no color) | #151515 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151033
#151033
oklch(20.3% 0.066 285.4)
- #1A1800
#1A1800
oklch(20.5% 0.044 105.5)
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 #151033, 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 0.049
- Midnight Purple #280137 ΔE 0.054
- Very Dark Purple #2A0134 ΔE 0.057
- Dark Navy #000435 ΔE 0.060
- Night Blue #040348 ΔE 0.061
- Dark Indigo #1F0954 ΔE 0.066
- Midnight #03012D ΔE 0.068
Use #151033 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.