#191D34
Closest named color: Dark (#1B2431). oklch(23.9% 0.044 275), rgb(25, 29, 52).
Aa
White text reads best on this color (16.57:1).
About this color
#191D34 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.044 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.027 away. White text reads best on it, at 16.57:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.26:1 |
| White text | 16.57:1 |
Values
| HEX | #191D34 |
| RGB | rgb(25, 29, 52) |
| HSL | hsl(231, 35%, 15%) |
| OKLCH | oklch(23.9% 0.044 275) |
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 #191D34 | 16.57:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #191D34 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #191D34 text on white | 16.57:1 | AAA | Lc 103.5 | Preferred for body text |
| #191D34 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B6BFE3
oklch(81% 0.052 274.2)
-
Step 400
400
#919DD5
oklch(70.7% 0.083 274.7)
-
Step 500
500
#7784CA
oklch(63.2% 0.106 274.9)
-
Step 600
600
#606CB7
oklch(55.6% 0.117 275.1)
-
Step 700
700
#4F5A9E
oklch(49.1% 0.109 274.7)
-
Step 800
800
#414A80
oklch(42.8% 0.09 274.8)
-
Step 900
900
#373E67
oklch(37.8% 0.071 275.1)
-
Step 950
950 (this color)
#191D34
oklch(23.9% 0.044 275)
#191D34 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) | #152035 | 0.011 |
| Deuteranopia (no green cones) | #131D33 | 0.010 |
| Tritanopia (no blue cones) | #102226 | 0.039 |
| Achromatopsia (no color) | #1E1E1E | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191D34
#191D34
oklch(23.9% 0.044 275)
- #261F03
#261F03
oklch(24.1% 0.045 95.4)
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 #191D34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.027
- Rich Black #0D1B2A ΔE 0.028
- Oxford Blue #1B263B ΔE 0.031
- Jet #212529 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.066
- Navy Blue #001146 ΔE 0.066
- Midnight Purple #280137 ΔE 0.078
- Gunmetal #293241 ΔE 0.078
Use #191D34 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.