#1B0B3A
Closest named color: Midnight Purple (#280137). oklch(20.8% 0.085 293.1), rgb(27, 11, 58).
Aa
White text reads best on this color (18.17:1).
About this color
#1B0B3A is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.085 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.037 away. White text reads best on it, at 18.17:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.15:1 |
| White text | 18.17:1 |
Values
| HEX | #1B0B3A |
| RGB | rgb(27, 11, 58) |
| HSL | hsl(260, 68%, 14%) |
| OKLCH | oklch(20.8% 0.085 293.1) |
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 #1B0B3A | 18.17:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #1B0B3A | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #1B0B3A text on white | 18.17:1 | AAA | Lc 104.6 | Preferred for body text |
| #1B0B3A 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FC
oklch(93.7% 0.028 292.4)
-
Step 200
200
#DAD3FC
oklch(88.5% 0.056 293)
-
Step 300
300
#C3B5FC
oklch(81% 0.1 293.1)
-
Step 400
400
#A68AFB
oklch(70.7% 0.162 293.2)
-
Step 500
500
#9268F8
oklch(63.1% 0.206 293)
-
Step 600
600
#7E49E7
oklch(55.6% 0.224 293)
-
Step 700
700
#6B39C9
oklch(49.2% 0.208 293)
-
Step 800
800
#5731A2
oklch(42.8% 0.172 293.2)
-
Step 900
900
#472D81
oklch(37.7% 0.135 293.1)
-
Step 950
950 (this color)
#1B0B3A
oklch(20.8% 0.085 293.1)
#1B0B3A 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) | #00163B | 0.050 |
| Deuteranopia (no green cones) | #001539 | 0.049 |
| Tritanopia (no blue cones) | #121721 | 0.067 |
| Achromatopsia (no color) | #161616 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0B3A
#1B0B3A
oklch(20.8% 0.085 293.1)
- #181A00
#181A00
oklch(20.9% 0.047 113.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #1B0B3A
These curated palettes and gradients contain exactly #1B0B3A. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.037
- Very Dark Purple #2A0134 ΔE 0.043
- Dark Indigo #1F0954 ΔE 0.050
- Navy Blue #001146 ΔE 0.052
- Night Blue #040348 ΔE 0.059
- Dark Purple #35063E ΔE 0.062
- Rich Black #0D1B2A ΔE 0.064
- Deep Purple #36013F ΔE 0.065
Use #1B0B3A 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.