#1945A0
Closest named color: Cobalt (#1E488F). oklch(41.9% 0.156 262.4), rgb(25, 69, 160).
Aa
White text reads best on this color (8.74:1).
About this color
#1945A0 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.156 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 8.74:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #1945A0 |
| RGB | rgb(25, 69, 160) |
| HSL | hsl(220, 73%, 36%) |
| OKLCH | oklch(41.9% 0.156 262.4) |
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 #1945A0 | 8.74:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #1945A0 | 2.40:1 | Fails | Lc 14.6 | Not readable |
| #1945A0 text on white | 8.74:1 | AAA | Lc 89.4 | Fine for body text |
| #1945A0 text on black | 2.40:1 | Fails | Lc -12.9 | 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
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#A1C1FC
oklch(80.9% 0.091 262.4)
-
Step 400
400
#6E9EFB
oklch(70.6% 0.146 262.6)
-
Step 500
500
#4883F8
oklch(63.1% 0.186 262.3)
-
Step 600
600
#2B69E7
oklch(55.6% 0.202 262.3)
-
Step 700
700
#1F56C9
oklch(49.1% 0.188 262.5)
-
Step 800
800 (this color)
#1945A0
oklch(41.9% 0.156 262.4)
-
Step 900
900
#1C3D81
oklch(37.7% 0.121 262.6)
-
Step 950
950
#11244B
oklch(26.9% 0.077 262.8)
#1945A0 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) | #0051A3 | 0.031 |
| Deuteranopia (no green cones) | #00459E | 0.012 |
| Tritanopia (no blue cones) | #005C6B | 0.121 |
| Achromatopsia (no color) | #4B4B4B | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1945A0
#1945A0
oklch(41.9% 0.156 262.4)
- #644700
#644700
oklch(41.9% 0.086 81.8)
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 #1945A0, closest first.
No curated palette has a color within ΔE 0.04 of #1945A0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Sapphire #2138AB ΔE 0.035
- Blueberry #464196 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Light Navy #155084 ΔE 0.059
- Blue Blue #2242C7 ΔE 0.063
- Twilight Blue #0A437A ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.065
Use #1945A0 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.