#3A47AC
Closest named color: Blueberry (#464196). oklch(44.9% 0.161 272.6), rgb(58, 71, 172).
Aa
White text reads best on this color (7.84:1).
About this color
#3A47AC is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.161 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.040 away. White text reads best on it, at 7.84:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.67:1 |
| White text | 7.84:1 |
Values
| HEX | #3A47AC |
| RGB | rgb(58, 71, 172) |
| HSL | hsl(233, 50%, 45%) |
| OKLCH | oklch(44.9% 0.161 272.6) |
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 #3A47AC | 7.84:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #3A47AC | 2.67:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #3A47AC text on white | 7.84:1 | AAA | Lc 86.8 | Fine for body text |
| #3A47AC text on black | 2.67:1 | Fails | Lc -15.3 | Dividers and decoration only |
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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFE
oklch(80.9% 0.094 272.8)
-
Step 400
400
#8298FD
oklch(70.7% 0.15 272.8)
-
Step 500
500
#657AFB
oklch(63% 0.192 272.7)
-
Step 600
600
#4F5FEB
oklch(55.6% 0.209 272.6)
-
Step 700
700
#414DCC
oklch(49.1% 0.194 272.8)
-
Step 800
800 (this color)
#3A47AC
oklch(44.9% 0.161 272.6)
-
Step 900
900
#2D3883
oklch(37.7% 0.126 272.6)
-
Step 950
950
#1A224C
oklch(27.1% 0.078 272.1)
#3A47AC 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) | #0057AF | 0.050 |
| Deuteranopia (no green cones) | #004DAA | 0.042 |
| Tritanopia (no blue cones) | #006072 | 0.134 |
| Achromatopsia (no color) | #525252 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A47AC
#3A47AC
oklch(44.9% 0.161 272.6)
- #675300
#675300
oklch(45% 0.092 92.7)
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 #3A47AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.040
- Sapphire #2138AB ΔE 0.050
- Blue Blue #2242C7 ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.056
- Cobalt #1E488F ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.060
- Dusk Blue #26538D ΔE 0.066
Use #3A47AC 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.