#161951
Closest named color: Dark Indigo (#1F0954). oklch(25.2% 0.1 274.3), rgb(22, 25, 81).
Aa
White text reads best on this color (16.25:1).
About this color
#161951 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.100 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.034 away. White text reads best on it, at 16.25:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.29:1 |
| White text | 16.25:1 |
Values
| HEX | #161951 |
| RGB | rgb(22, 25, 81) |
| HSL | hsl(237, 57%, 20%) |
| OKLCH | oklch(25.2% 0.1 274.3) |
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 #161951 | 16.25:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #161951 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #161951 text on white | 16.25:1 | AAA | Lc 102.9 | Preferred for body text |
| #161951 text on black | 1.29:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500
#6878FF
oklch(63.1% 0.199 274.1)
-
Step 600
600
#5154FF
oklch(55.6% 0.246 274.2)
-
Step 700
700
#433CE7
oklch(49.1% 0.245 274.3)
-
Step 800
800
#3634BB
oklch(42.8% 0.203 274.2)
-
Step 900
900
#2D3093
oklch(37.6% 0.159 274.4)
-
Step 950
950 (this color)
#161951
oklch(25.2% 0.1 274.3)
#161951 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) | #002353 | 0.032 |
| Deuteranopia (no green cones) | #001E50 | 0.026 |
| Tritanopia (no blue cones) | #002732 | 0.081 |
| Achromatopsia (no color) | #202020 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161951
#161951
oklch(25.2% 0.1 274.3)
- #2A2100
#2A2100
oklch(25.1% 0.051 93.9)
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 #161951, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.034
- Navy Blue #001146 ΔE 0.047
- Darkblue #030764 ΔE 0.056
- Midnight Blue #191970 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.062
- Marine #042E60 ΔE 0.063
- Night Blue #040348 ΔE 0.066
- Dark Royal Blue #02066F ΔE 0.067
Use #161951 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.