#3140AF
Closest named color: Sapphire (#2138AB). oklch(43.3% 0.176 271), rgb(49, 64, 175).
Aa
White text reads best on this color (8.45:1).
About this color
#3140AF is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.176 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.029 away. White text reads best on it, at 8.45:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #3140AF |
| RGB | rgb(49, 64, 175) |
| HSL | hsl(233, 56%, 44%) |
| OKLCH | oklch(43.3% 0.176 271) |
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 #3140AF | 8.45:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #3140AF | 2.48:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #3140AF text on white | 8.45:1 | AAA | Lc 88.5 | Fine for body text |
| #3140AF text on black | 2.48:1 | Fails | Lc -13.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7E99FF
oklch(70.7% 0.152 270.9)
-
Step 500
500
#607BFF
oklch(63.2% 0.197 271)
-
Step 600
600
#485CF6
oklch(55.6% 0.229 271.1)
-
Step 700
700
#3A4AD6
oklch(49.1% 0.212 270.9)
-
Step 800
800 (this color)
#3140AF
oklch(43.3% 0.176 271)
-
Step 900
900
#293789
oklch(37.8% 0.137 271)
-
Step 950
950
#182150
oklch(27% 0.087 271.3)
#3140AF 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) | #0053B3 | 0.050 |
| Deuteranopia (no green cones) | #0047AD | 0.034 |
| Tritanopia (no blue cones) | #005D71 | 0.142 |
| Achromatopsia (no color) | #4D4D4D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3140AF
#3140AF
oklch(43.3% 0.176 271)
- #634E00
#634E00
oklch(43.3% 0.089 90.9)
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 #3140AF, closest first.
No curated palette has a color within ΔE 0.04 of #3140AF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.029
- Blue Blue #2242C7 ΔE 0.041
- Majorelle Blue #3F37C9 ΔE 0.047
- Blueberry #464196 ΔE 0.050
- Cobalt #1E488F ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.067
- Indigo Blue #3A18B1 ΔE 0.067
Use #3140AF 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.