#1B1A46
Closest named color: Dark Indigo (#1F0954). oklch(24.8% 0.08 279.8), rgb(27, 26, 70).
Aa
White text reads best on this color (16.37:1).
About this color
#1B1A46 is a very dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.080 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.044 away. White text reads best on it, at 16.37:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.28:1 |
| White text | 16.37:1 |
Values
| HEX | #1B1A46 |
| RGB | rgb(27, 26, 70) |
| HSL | hsl(241, 46%, 19%) |
| OKLCH | oklch(24.8% 0.08 279.8) |
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 #1B1A46 | 16.37:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #1B1A46 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #1B1A46 text on white | 16.37:1 | AAA | Lc 103.1 | Preferred for body text |
| #1B1A46 text on black | 1.28:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D1D6FC
oklch(88.4% 0.053 279.4)
-
Step 300
300
#B4BAFD
oklch(80.8% 0.095 280.1)
-
Step 400
400
#8F94FD
oklch(70.8% 0.152 279.7)
-
Step 500
500
#7675FA
oklch(63.1% 0.193 279.7)
-
Step 600
600
#6259E9
oklch(55.7% 0.21 279.9)
-
Step 700
700
#5147CB
oklch(49% 0.196 279.7)
-
Step 800
800
#423CA4
oklch(42.7% 0.162 279.6)
-
Step 900
900
#373582
oklch(37.8% 0.126 279.7)
-
Step 950
950 (this color)
#1B1A46
oklch(24.8% 0.08 279.8)
#1B1A46 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) | #002147 | 0.035 |
| Deuteranopia (no green cones) | #001E45 | 0.034 |
| Tritanopia (no blue cones) | #07242D | 0.068 |
| Achromatopsia (no color) | #202020 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B1A46
#1B1A46
oklch(24.8% 0.08 279.8)
- #272100
#272100
oklch(24.7% 0.051 99.3)
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 #1B1A46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.047
- Navy Blue #001146 ΔE 0.051
- Dark #1B2431 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.060
- Dark Purple #35063E ΔE 0.068
- Midnight Purple #280137 ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.071
Use #1B1A46 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.