#161D3B
Closest named color: Oxford Blue (#1B263B). oklch(24.2% 0.058 271.6), rgb(22, 29, 59).
Aa
White text reads best on this color (16.49:1).
About this color
#161D3B is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.058 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.032 away. White text reads best on it, at 16.49:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.27:1 |
| White text | 16.49:1 |
Values
| HEX | #161D3B |
| RGB | rgb(22, 29, 59) |
| HSL | hsl(229, 46%, 16%) |
| OKLCH | oklch(24.2% 0.058 271.6) |
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 #161D3B | 16.49:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #161D3B | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #161D3B text on white | 16.49:1 | AAA | Lc 103.4 | Preferred for body text |
| #161D3B text on black | 1.27:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B0BFEE
oklch(80.9% 0.069 271)
-
Step 400
400
#889CE5
oklch(70.6% 0.11 271.7)
-
Step 500
500
#6C82DE
oklch(63.2% 0.14 271.7)
-
Step 600
600
#5569CC
oklch(55.6% 0.154 271.9)
-
Step 700
700
#4557B0
oklch(49% 0.142 271.6)
-
Step 800
800
#39488F
oklch(42.8% 0.118 271.6)
-
Step 900
900
#313D72
oklch(37.8% 0.092 271.8)
-
Step 950
950 (this color)
#161D3B
oklch(24.2% 0.058 271.6)
#161D3B 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) | #10213C | 0.014 |
| Deuteranopia (no green cones) | #0C1D3A | 0.014 |
| Tritanopia (no blue cones) | #042429 | 0.052 |
| Achromatopsia (no color) | #1F1F1F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161D3B
#161D3B
oklch(24.2% 0.058 271.6)
- #281E00
#281E00
oklch(24% 0.049 90.9)
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 #161D3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.032
- Dark #1B2431 ΔE 0.036
- Rich Black #0D1B2A ΔE 0.037
- Jet #212529 ΔE 0.053
- Navy Blue #001146 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.067
- Midnight Purple #280137 ΔE 0.077
Use #161D3B 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.