#1945AF
Closest named color: Sapphire (#2138AB). oklch(43.3% 0.176 263.6), rgb(25, 69, 175).
Aa
White text reads best on this color (8.36:1).
About this color
#1945AF is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.176 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.030 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #1945AF |
| RGB | rgb(25, 69, 175) |
| HSL | hsl(222, 75%, 39%) |
| OKLCH | oklch(43.3% 0.176 263.6) |
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 #1945AF | 8.36:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #1945AF | 2.51:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #1945AF text on white | 8.36:1 | AAA | Lc 88.1 | Fine for body text |
| #1945AF text on black | 2.51:1 | Fails | Lc -14.0 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4881FF
oklch(63.2% 0.197 263.5)
-
Step 600
600
#2663F6
oklch(55.6% 0.229 263.5)
-
Step 700
700
#1A51D6
oklch(49.1% 0.212 263.5)
-
Step 800
800 (this color)
#1945AF
oklch(43.3% 0.176 263.6)
-
Step 900
900
#193A89
oklch(37.6% 0.138 263.8)
-
Step 950
950
#0F2350
oklch(27% 0.087 263.6)
#1945AF 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) | #0055B3 | 0.040 |
| Deuteranopia (no green cones) | #0047AD | 0.012 |
| Tritanopia (no blue cones) | #006073 | 0.135 |
| Achromatopsia (no color) | #4E4E4E | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1945AF
#1945AF
oklch(43.3% 0.176 263.6)
- #684B00
#684B00
oklch(43.3% 0.089 83)
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 #1945AF, closest first.
No curated palette has a color within ΔE 0.04 of #1945AF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.030
- Blue Blue #2242C7 ΔE 0.039
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.060
- Blueberry #464196 ΔE 0.064
- Dusk Blue #26538D ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.079
- Light Navy #155084 ΔE 0.079
Use #1945AF 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.