#1B0B38
Closest named color: Midnight Purple (#280137). oklch(20.6% 0.082 294.3), rgb(27, 11, 56).
Aa
White text reads best on this color (18.23:1).
About this color
#1B0B38 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.082 and its hue 294°. 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 18.23:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.15:1 |
| White text | 18.23:1 |
Values
| HEX | #1B0B38 |
| RGB | rgb(27, 11, 56) |
| HSL | hsl(261, 67%, 13%) |
| OKLCH | oklch(20.6% 0.082 294.3) |
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 #1B0B38 | 18.23:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #1B0B38 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #1B0B38 text on white | 18.23:1 | AAA | Lc 104.6 | Preferred for body text |
| #1B0B38 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DBD3FA
oklch(88.6% 0.054 294.7)
-
Step 300
300
#C4B5FA
oklch(81% 0.097 294.1)
-
Step 400
400
#A78BF7
oklch(70.7% 0.155 294)
-
Step 500
500
#9469F3
oklch(63.1% 0.198 294.4)
-
Step 600
600
#804BE2
oklch(55.7% 0.216 294.4)
-
Step 700
700
#6C3AC4
oklch(49% 0.201 294.3)
-
Step 800
800
#58329F
oklch(42.8% 0.167 294.2)
-
Step 900
900
#482E7E
oklch(37.8% 0.129 294.3)
-
Step 950
950 (this color)
#1B0B38
oklch(20.6% 0.082 294.3)
#1B0B38 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) | #001639 | 0.050 |
| Deuteranopia (no green cones) | #001437 | 0.049 |
| Tritanopia (no blue cones) | #131620 | 0.064 |
| Achromatopsia (no color) | #151515 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0B38
#1B0B38
oklch(20.6% 0.082 294.3)
- #171900
#171900
oklch(20.4% 0.046 113.7)
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 #1B0B38, closest first.
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 0.042
- Dark Indigo #1F0954 ΔE 0.053
- Navy Blue #001146 ΔE 0.054
- Night Blue #040348 ΔE 0.061
- Dark Purple #35063E ΔE 0.062
- Rich Black #0D1B2A ΔE 0.062
- Deep Purple #36013F ΔE 0.066
Use #1B0B38 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.