#1F46B3
Closest named color: Blue Blue (#2242C7). oklch(44% 0.179 264.8), rgb(31, 70, 179).
Aa
White text reads best on this color (8.12:1).
About this color
#1F46B3 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.179 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.033 away. White text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #1F46B3 |
| RGB | rgb(31, 70, 179) |
| HSL | hsl(224, 70%, 41%) |
| OKLCH | oklch(44% 0.179 264.8) |
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 #1F46B3 | 8.12:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #1F46B3 | 2.58:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #1F46B3 text on white | 8.12:1 | AAA | Lc 87.4 | Fine for body text |
| #1F46B3 text on black | 2.58:1 | Fails | Lc -14.7 | 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
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500
#4C80FF
oklch(63.2% 0.197 264.6)
-
Step 600
600
#2C61F8
oklch(55.5% 0.232 264.8)
-
Step 700
700
#204FD8
oklch(49.1% 0.215 264.7)
-
Step 800
800 (this color)
#1F46B3
oklch(44% 0.179 264.8)
-
Step 900
900
#1B3A8A
oklch(37.8% 0.139 264.5)
-
Step 950
950
#102351
oklch(27.1% 0.088 264.4)
#1F46B3 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) | #0057B7 | 0.042 |
| Deuteranopia (no green cones) | #0049B1 | 0.015 |
| Tritanopia (no blue cones) | #006275 | 0.139 |
| Achromatopsia (no color) | #505050 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F46B3
#1F46B3
oklch(44% 0.179 264.8)
- #694E00
#694E00
oklch(44.1% 0.09 85.6)
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 #1F46B3, closest first.
No curated palette has a color within ΔE 0.04 of #1F46B3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.033
- Sapphire #2138AB ΔE 0.035
- Majorelle Blue #3F37C9 ΔE 0.054
- Cobalt #1E488F ΔE 0.059
- Blueberry #464196 ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.072
- Dusk Blue #26538D ΔE 0.074
- Blurple #5539CC ΔE 0.079
Use #1F46B3 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.