#191E36
Closest named color: Dark (#1B2431). oklch(24.3% 0.046 273.6), rgb(25, 30, 54).
Aa
White text reads best on this color (16.40:1).
About this color
#191E36 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.046 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.026 away. White text reads best on it, at 16.40:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.28:1 |
| White text | 16.40:1 |
Values
| HEX | #191E36 |
| RGB | rgb(25, 30, 54) |
| HSL | hsl(230, 37%, 15%) |
| OKLCH | oklch(24.3% 0.046 273.6) |
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 #191E36 | 16.40:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #191E36 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #191E36 text on white | 16.40:1 | AAA | Lc 103.3 | Preferred for body text |
| #191E36 text on black | 1.28:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B5BFE5
oklch(81% 0.055 273.5)
-
Step 400
400
#8F9DD8
oklch(70.7% 0.088 273.7)
-
Step 500
500
#7484CD
oklch(63.2% 0.112 273.4)
-
Step 600
600
#5D6CBA
oklch(55.6% 0.122 273.6)
-
Step 700
700
#4D5AA0
oklch(49.1% 0.113 273.6)
-
Step 800
800
#3F4A82
oklch(42.8% 0.094 273.4)
-
Step 900
900
#353E68
oklch(37.7% 0.073 273.3)
-
Step 950
950 (this color)
#191E36
oklch(24.3% 0.046 273.6)
#191E36 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) | #152137 | 0.011 |
| Deuteranopia (no green cones) | #131E35 | 0.010 |
| Tritanopia (no blue cones) | #0F2327 | 0.041 |
| Achromatopsia (no color) | #1F1F1F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191E36
#191E36
oklch(24.3% 0.046 273.6)
- #271F02
#271F02
oklch(24.2% 0.047 94)
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 #191E36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.026
- Oxford Blue #1B263B ΔE 0.028
- Rich Black #0D1B2A ΔE 0.032
- Jet #212529 ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.062
- Navy Blue #001146 ΔE 0.066
- Gunmetal #293241 ΔE 0.075
- Dark Indigo #1F0954 ΔE 0.077
Use #191E36 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.