#161F4B
Closest named color: Oxford Blue (#1B263B). oklch(26% 0.082 270.9), rgb(22, 31, 75).
Aa
White text reads best on this color (15.76:1).
About this color
#161F4B is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.082 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.042 away. White text reads best on it, at 15.76:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.76:1 |
Values
| HEX | #161F4B |
| RGB | rgb(22, 31, 75) |
| HSL | hsl(230, 55%, 19%) |
| OKLCH | oklch(26% 0.082 270.9) |
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 #161F4B | 15.76:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #161F4B | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #161F4B text on white | 15.76:1 | AAA | Lc 102.5 | Preferred for body text |
| #161F4B text on black | 1.33:1 | 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
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FE
oklch(88.5% 0.054 271.5)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7E99FF
oklch(70.7% 0.152 270.9)
-
Step 500
500
#607BFF
oklch(63.2% 0.197 271)
-
Step 600
600
#495FEF
oklch(55.6% 0.216 270.9)
-
Step 700
700
#3B4DD0
oklch(49.1% 0.201 270.8)
-
Step 800
800
#3140A8
oklch(42.7% 0.166 271.1)
-
Step 900
900
#2A3885
oklch(37.7% 0.13 271.1)
-
Step 950
950 (this color)
#161F4B
oklch(26% 0.082 270.9)
#161F4B 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) | #04254D | 0.023 |
| Deuteranopia (no green cones) | #00204A | 0.024 |
| Tritanopia (no blue cones) | #002931 | 0.069 |
| Achromatopsia (no color) | #232323 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161F4B
#161F4B
oklch(26% 0.082 270.9)
- #2E2300
#2E2300
oklch(26.2% 0.053 91.2)
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 #161F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.042
- Dark Indigo #1F0954 ΔE 0.052
- Navy Blue #001146 ΔE 0.055
- Marine #042E60 ΔE 0.055
- Dark #1B2431 ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.064
- Rich Black #0D1B2A ΔE 0.065
- Midnight Blue #191970 ΔE 0.068
Use #161F4B 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.