#161D37
Closest named color: Rich Black (#0D1B2A). oklch(23.9% 0.051 270.8), rgb(22, 29, 55).
Aa
White text reads best on this color (16.60:1).
About this color
#161D37 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.051 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.030 away. White text reads best on it, at 16.60:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.26:1 |
| White text | 16.60:1 |
Values
| HEX | #161D37 |
| RGB | rgb(22, 29, 55) |
| HSL | hsl(227, 43%, 15%) |
| OKLCH | oklch(23.9% 0.051 270.8) |
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 #161D37 | 16.60:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #161D37 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #161D37 text on white | 16.60:1 | AAA | Lc 103.5 | Preferred for body text |
| #161D37 text on black | 1.26:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D1D9F0
oklch(88.6% 0.033 270.4)
-
Step 300
300
#B2BFE9
oklch(80.9% 0.061 271.5)
-
Step 400
400
#8A9DDD
oklch(70.6% 0.097 271.1)
-
Step 500
500
#6E84D4
oklch(63.1% 0.123 270.9)
-
Step 600
600
#576CC1
oklch(55.6% 0.134 271)
-
Step 700
700
#475AA7
oklch(49.1% 0.125 270.8)
-
Step 800
800
#3A4A87
oklch(42.7% 0.103 270.5)
-
Step 900
900
#323E6C
oklch(37.7% 0.08 271.1)
-
Step 950
950 (this color)
#161D37
oklch(23.9% 0.051 270.8)
#161D37 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) | #132038 | 0.010 |
| Deuteranopia (no green cones) | #0F1D36 | 0.010 |
| Tritanopia (no blue cones) | #082327 | 0.046 |
| Achromatopsia (no color) | #1E1E1E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161D37
#161D37
oklch(23.9% 0.051 270.8)
- #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 #161D37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.030
- Dark #1B2431 ΔE 0.031
- Oxford Blue #1B263B ΔE 0.032
- Jet #212529 ΔE 0.048
- Navy Blue #001146 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.068
- Dark Indigo #1F0954 ΔE 0.074
- Midnight Purple #280137 ΔE 0.079
Use #161D37 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.