#19374B
Closest named color: Dark Blue Grey (#1F3B4D). oklch(32.4% 0.051 240), rgb(25, 55, 75).
Aa
White text reads best on this color (12.43:1).
About this color
#19374B is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.051 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.016 away. White text reads best on it, at 12.43:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.68:1 |
| White text | 12.43:1 |
Values
| HEX | #19374B |
| RGB | rgb(25, 55, 75) |
| HSL | hsl(204, 50%, 20%) |
| OKLCH | oklch(32.4% 0.051 240) |
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 #19374B | 12.43:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #19374B | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #19374B text on white | 12.43:1 | AAA | Lc 98.1 | Preferred for body text |
| #19374B text on black | 1.68:1 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ABC4D7
oklch(80.8% 0.038 240.8)
-
Step 400
400
#7EA6C3
oklch(70.6% 0.061 240.2)
-
Step 500
500
#5C90B4
oklch(63.1% 0.078 239.9)
-
Step 600
600
#417AA0
oklch(55.7% 0.084 239.8)
-
Step 700
700
#326689
oklch(49% 0.079 240.5)
-
Step 800
800
#2B546F
oklch(42.8% 0.064 239.5)
-
Step 900
900 (this color)
#19374B
oklch(32.4% 0.051 240)
-
Step 950
950
#172935
oklch(27.1% 0.033 238.8)
#19374B 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) | #2E374C | 0.027 |
| Deuteranopia (no green cones) | #27324B | 0.022 |
| Tritanopia (no blue cones) | #003C3E | 0.038 |
| Achromatopsia (no color) | #343434 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19374B
#19374B
oklch(32.4% 0.051 240)
- #472D17
#472D17
oklch(32.4% 0.051 59.7)
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 #19374B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.016
- Midnight Green #073B4C ΔE 0.017
- Prussian Blue #1D3557 ΔE 0.025
- Gunmetal #293241 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.037
- Onyx #343A40 ΔE 0.043
- Charcoal #264653 ΔE 0.053
- Marine #042E60 ΔE 0.055
Use #19374B 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.