#19357A
Closest named color: Marine Blue (#01386A). oklch(35.2% 0.123 264.3), rgb(25, 53, 122).
Aa
White text reads best on this color (11.46:1).
About this color
#19357A is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.123 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.034 away. White text reads best on it, at 11.46:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.83:1 |
| White text | 11.46:1 |
Values
| HEX | #19357A |
| RGB | rgb(25, 53, 122) |
| HSL | hsl(223, 66%, 29%) |
| OKLCH | oklch(35.2% 0.123 264.3) |
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 #19357A | 11.46:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #19357A | 1.83:1 | Fails | Lc 7.9 | Not readable |
| #19357A text on white | 11.46:1 | AAA | Lc 96.0 | Preferred for body text |
| #19357A text on black | 1.83:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A3C0FD
oklch(80.9% 0.092 264.7)
-
Step 400
400
#729DFC
oklch(70.7% 0.147 264.5)
-
Step 500
500
#4E81FA
oklch(63.1% 0.189 264.4)
-
Step 600
600
#3367E9
oklch(55.7% 0.205 264.2)
-
Step 700
700
#2754CA
oklch(49% 0.19 264.4)
-
Step 800
800
#2146A4
oklch(42.8% 0.158 264.4)
-
Step 900
900 (this color)
#19357A
oklch(35.2% 0.123 264.3)
-
Step 950
950
#13244C
oklch(27.1% 0.077 264.5)
#19357A 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) | #003E7C | 0.026 |
| Deuteranopia (no green cones) | #003579 | 0.017 |
| Tritanopia (no blue cones) | #004652 | 0.096 |
| Achromatopsia (no color) | #393939 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19357A
#19357A
oklch(35.2% 0.123 264.3)
- #4D3700
#4D3700
oklch(35.2% 0.072 83.6)
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 #19357A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.034
- Twilight Blue #0A437A ΔE 0.039
- Marine #042E60 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.061
- Cobalt #1E488F ΔE 0.062
- Midnight Blue #191970 ΔE 0.070
- Royal #0C1793 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.078
Use #19357A 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.