#161839
Closest named color: Rich Black (#0D1B2A). oklch(22.8% 0.063 277.6), rgb(22, 24, 57).
Aa
White text reads best on this color (17.15:1).
About this color
#161839 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.063 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.036 away. White text reads best on it, at 17.15:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.15:1 |
Values
| HEX | #161839 |
| RGB | rgb(22, 24, 57) |
| HSL | hsl(237, 44%, 15%) |
| OKLCH | oklch(22.8% 0.063 277.6) |
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 #161839 | 17.15:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #161839 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #161839 text on white | 17.15:1 | AAA | Lc 103.9 | Preferred for body text |
| #161839 text on black | 1.22:1 | 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
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B4BDF1
oklch(80.9% 0.074 277)
-
Step 400
400
#8F99EA
oklch(70.8% 0.119 277.5)
-
Step 500
500
#757DE3
oklch(63.1% 0.152 277.7)
-
Step 600
600
#5F64D1
oklch(55.6% 0.165 277.6)
-
Step 700
700
#4F52B5
oklch(49.1% 0.154 277.8)
-
Step 800
800
#404493
oklch(42.7% 0.128 277.4)
-
Step 900
900
#363A75
oklch(37.7% 0.099 277.6)
-
Step 950
950 (this color)
#161839
oklch(22.8% 0.063 277.6)
#161839 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) | #081D3A | 0.023 |
| Deuteranopia (no green cones) | #051A38 | 0.023 |
| Tritanopia (no blue cones) | #071F25 | 0.055 |
| Achromatopsia (no color) | #1B1B1B | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161839
#161839
oklch(22.8% 0.063 277.6)
- #221C00
#221C00
oklch(22.7% 0.047 98)
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 #161839, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.036
- Navy Blue #001146 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.048
- Dark #1B2431 ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.061
- Jet #212529 ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
- Very Dark Purple #2A0134 ΔE 0.068
Use #161839 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.