#161833
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.052 278.1), rgb(22, 24, 51).
Aa
White text reads best on this color (17.31:1).
About this color
#161833 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.052 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 17.31:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.31:1 |
Values
| HEX | #161833 |
| RGB | rgb(22, 24, 51) |
| HSL | hsl(236, 40%, 14%) |
| OKLCH | oklch(22.3% 0.052 278.1) |
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 #161833 | 17.31:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #161833 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #161833 text on white | 17.31:1 | AAA | Lc 104.1 | Preferred for body text |
| #161833 text on black | 1.21:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D7F0
oklch(88.4% 0.035 278.4)
-
Step 300
300
#B7BDE9
oklch(80.8% 0.062 278.8)
-
Step 400
400
#929ADE
oklch(70.6% 0.1 278.4)
-
Step 500
500
#7880D4
oklch(63% 0.126 278)
-
Step 600
600
#6268C2
oklch(55.6% 0.138 278)
-
Step 700
700
#5156A7
oklch(49% 0.128 277.9)
-
Step 800
800
#434787
oklch(42.7% 0.105 278.3)
-
Step 900
900
#383C6C
oklch(37.7% 0.082 278.1)
-
Step 950
950 (this color)
#161833
oklch(22.3% 0.052 278.1)
#161833 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) | #0D1C34 | 0.017 |
| Deuteranopia (no green cones) | #0B1932 | 0.017 |
| Tritanopia (no blue cones) | #0B1E23 | 0.046 |
| Achromatopsia (no color) | #1A1A1A | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161833
#161833
oklch(22.3% 0.052 278.1)
- #211B00
#211B00
oklch(22.2% 0.046 97.7)
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 #161833, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Dark #1B2431 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.049
- Navy Blue #001146 ΔE 0.055
- Jet #212529 ΔE 0.059
- Midnight Purple #280137 ΔE 0.068
- Rich Navy #001219 ΔE 0.069
- Very Dark Purple #2A0134 ΔE 0.069
Use #161833 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.