#19436F
Closest named color: Twilight Blue (#0A437A). oklch(37.7% 0.089 252.2), rgb(25, 67, 111).
Aa
White text reads best on this color (10.12:1).
About this color
#19436F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.089 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.020 away. White text reads best on it, at 10.12:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #19436F |
| RGB | rgb(25, 67, 111) |
| HSL | hsl(211, 63%, 27%) |
| OKLCH | oklch(37.7% 0.089 252.2) |
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 #19436F | 10.12:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #19436F | 2.07:1 | Fails | Lc 10.7 | Not readable |
| #19436F text on white | 10.12:1 | AAA | Lc 93.2 | Preferred for body text |
| #19436F text on black | 2.07:1 | Fails | Lc -9.3 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4EB
oklch(80.9% 0.066 252.1)
-
Step 400
400
#6EA4E1
oklch(70.6% 0.107 252.3)
-
Step 500
500
#458CD9
oklch(63% 0.137 252.4)
-
Step 600
600
#2275C6
oklch(55.6% 0.147 252)
-
Step 700
700
#1362AB
oklch(49.2% 0.137 251.9)
-
Step 800
800
#14508B
oklch(42.7% 0.114 252.3)
-
Step 900
900 (this color)
#19436F
oklch(37.7% 0.089 252.2)
-
Step 950
950
#102741
oklch(26.9% 0.057 253.1)
#19436F 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) | #2F4671 | 0.026 |
| Deuteranopia (no green cones) | #223E6E | 0.016 |
| Tritanopia (no blue cones) | #004D53 | 0.067 |
| Achromatopsia (no color) | #424242 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19436F
#19436F
oklch(37.7% 0.089 252.2)
- #5B3900
#5B3900
oklch(37.6% 0.08 72.2)
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 #19436F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.020
- Marine Blue #01386A ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.041
- Light Navy #155084 ΔE 0.048
- Charcoal #264653 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.055
- Cobalt #1E488F ΔE 0.055
Use #19436F 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.