#1B0F38
Closest named color: Midnight Purple (#280137). oklch(21.3% 0.076 292.2), rgb(27, 15, 56).
Aa
White text reads best on this color (17.91:1).
About this color
#1B0F38 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.076 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.042 away. White text reads best on it, at 17.91:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.17:1 |
| White text | 17.91:1 |
Values
| HEX | #1B0F38 |
| RGB | rgb(27, 15, 56) |
| HSL | hsl(258, 58%, 14%) |
| OKLCH | oklch(21.3% 0.076 292.2) |
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 #1B0F38 | 17.91:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1B0F38 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #1B0F38 text on white | 17.91:1 | AAA | Lc 104.5 | Preferred for body text |
| #1B0F38 text on black | 1.17:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B6F6
oklch(80.8% 0.09 292.1)
-
Step 400
400
#A38EF2
oklch(70.7% 0.144 292)
-
Step 500
500
#8F6EED
oklch(63.1% 0.184 292.3)
-
Step 600
600
#7A52DB
oklch(55.5% 0.199 292.1)
-
Step 700
700
#6741BE
oklch(49% 0.186 292.1)
-
Step 800
800
#54379A
oklch(42.7% 0.154 292.1)
-
Step 900
900
#45317A
oklch(37.7% 0.119 292.4)
-
Step 950
950 (this color)
#1B0F38
oklch(21.3% 0.076 292.2)
#1B0F38 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) | #001839 | 0.046 |
| Deuteranopia (no green cones) | #001637 | 0.046 |
| Tritanopia (no blue cones) | #131821 | 0.060 |
| Achromatopsia (no color) | #171717 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0F38
#1B0F38
oklch(21.3% 0.076 292.2)
- #1A1B00
#1A1B00
oklch(21.4% 0.047 111.7)
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 #1B0F38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.042
- Very Dark Purple #2A0134 ΔE 0.046
- Navy Blue #001146 ΔE 0.052
- Dark Indigo #1F0954 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.054
- Dark Purple #35063E ΔE 0.062
- Night Blue #040348 ΔE 0.063
- Deep Purple #36013F ΔE 0.066
Use #1B0F38 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.