#191C44
Closest named color: Oxford Blue (#1B263B). oklch(24.9% 0.074 276.4), rgb(25, 28, 68).
Aa
White text reads best on this color (16.26:1).
About this color
#191C44 is a very dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.074 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.040 away. White text reads best on it, at 16.26:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.29:1 |
| White text | 16.26:1 |
Values
| HEX | #191C44 |
| RGB | rgb(25, 28, 68) |
| HSL | hsl(236, 46%, 18%) |
| OKLCH | oklch(24.9% 0.074 276.4) |
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 #191C44 | 16.26:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #191C44 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #191C44 text on white | 16.26:1 | AAA | Lc 103.1 | Preferred for body text |
| #191C44 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCFA
oklch(80.9% 0.089 276.4)
-
Step 400
400
#8A97F7
oklch(70.7% 0.141 276.3)
-
Step 500
500
#707AF3
oklch(63.2% 0.179 276.4)
-
Step 600
600
#5A5FE2
oklch(55.6% 0.195 276.3)
-
Step 700
700
#4B4DC4
oklch(49% 0.181 276.7)
-
Step 800
800
#3D409F
oklch(42.7% 0.151 276.5)
-
Step 900
900
#33387E
oklch(37.7% 0.117 276.2)
-
Step 950
950 (this color)
#191C44
oklch(24.9% 0.074 276.4)
#191C44 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) | #062245 | 0.027 |
| Deuteranopia (no green cones) | #011E43 | 0.029 |
| Tritanopia (no blue cones) | #03252C | 0.066 |
| Achromatopsia (no color) | #202020 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191C44
#191C44
oklch(24.9% 0.074 276.4)
- #292100
#292100
oklch(25% 0.051 95.7)
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 #191C44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.051
- Navy Blue #001146 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.067
- Jet #212529 ΔE 0.067
- Marine #042E60 ΔE 0.070
Use #191C44 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.