#3141AB
Closest named color: Sapphire (#2138AB). oklch(43.1% 0.169 270.8), rgb(49, 65, 171).
Aa
White text reads best on this color (8.48:1).
About this color
#3141AB is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.169 and its hue 271°. 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 8.48:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #3141AB |
| RGB | rgb(49, 65, 171) |
| HSL | hsl(232, 55%, 43%) |
| OKLCH | oklch(43.1% 0.169 270.8) |
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 #3141AB | 8.48:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #3141AB | 2.47:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #3141AB text on white | 8.48:1 | AAA | Lc 88.7 | Fine for body text |
| #3141AB text on black | 2.47:1 | Fails | Lc -13.5 | 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
#E2E9FE
oklch(93.5% 0.029 271.1)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7E99FF
oklch(70.7% 0.152 270.9)
-
Step 500
500
#5F7BFF
oklch(63.1% 0.198 270.7)
-
Step 600
600
#485EF1
oklch(55.5% 0.22 270.8)
-
Step 700
700
#3B4CD2
oklch(49.1% 0.205 271)
-
Step 800
800 (this color)
#3141AB
oklch(43.1% 0.169 270.8)
-
Step 900
900
#293886
oklch(37.7% 0.131 270.6)
-
Step 950
950
#18214F
oklch(26.9% 0.085 271.3)
#3141AB 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) | #0053AE | 0.048 |
| Deuteranopia (no green cones) | #0047A9 | 0.034 |
| Tritanopia (no blue cones) | #005C6F | 0.137 |
| Achromatopsia (no color) | #4D4D4D | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3141AB
#3141AB
oklch(43.1% 0.169 270.8)
- #624D00
#624D00
oklch(43% 0.088 90.6)
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 #3141AB, closest first.
No curated palette has a color within ΔE 0.04 of #3141AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.030
- Blueberry #464196 ΔE 0.045
- Blue Blue #2242C7 ΔE 0.047
- Majorelle Blue #3F37C9 ΔE 0.053
- Cobalt #1E488F ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Indigo Blue #3A18B1 ΔE 0.070
Use #3141AB 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.