#19439A
Closest named color: Cobalt (#1E488F). oklch(41% 0.15 262.5), rgb(25, 67, 154).
Aa
White text reads best on this color (9.08:1).
About this color
#19439A is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.150 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.024 away. White text reads best on it, at 9.08:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #19439A |
| RGB | rgb(25, 67, 154) |
| HSL | hsl(220, 72%, 35%) |
| OKLCH | oklch(41% 0.15 262.5) |
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 #19439A | 9.08:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #19439A | 2.31:1 | Fails | Lc 13.6 | Not readable |
| #19439A text on white | 9.08:1 | AAA | Lc 90.3 | Preferred for body text |
| #19439A text on black | 2.31:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A2C1FA
oklch(80.9% 0.088 262.4)
-
Step 400
400
#709FF8
oklch(70.8% 0.141 262.3)
-
Step 500
500
#4B84F4
oklch(63.2% 0.178 262.2)
-
Step 600
600
#2F6AE3
oklch(55.6% 0.195 262.4)
-
Step 700
700
#2257C5
oklch(49% 0.181 262.5)
-
Step 800
800 (this color)
#19439A
oklch(41% 0.15 262.5)
-
Step 900
900
#1D3D7F
oklch(37.6% 0.118 262.7)
-
Step 950
950
#12254A
oklch(27.1% 0.073 262.2)
#19439A 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) | #004F9D | 0.032 |
| Deuteranopia (no green cones) | #004398 | 0.013 |
| Tritanopia (no blue cones) | #005968 | 0.116 |
| Achromatopsia (no color) | #484848 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19439A
#19439A
oklch(41% 0.15 262.5)
- #614500
#614500
oklch(41% 0.085 82.1)
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 #19439A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.024
- Sapphire #2138AB ΔE 0.038
- Blueberry #464196 ΔE 0.053
- Dusk Blue #26538D ΔE 0.054
- Light Navy #155084 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.061
- Deep Sea Blue #015482 ΔE 0.067
Use #19439A 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.