#3A369D
Closest named color: Blueberry (#464196). oklch(40.5% 0.162 278.1), rgb(58, 54, 157).
Aa
White text reads best on this color (9.56:1).
About this color
#3A369D is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.162 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.037 away. White text reads best on it, at 9.56:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #3A369D |
| RGB | rgb(58, 54, 157) |
| HSL | hsl(242, 49%, 41%) |
| OKLCH | oklch(40.5% 0.162 278.1) |
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 #3A369D | 9.56:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #3A369D | 2.19:1 | Fails | Lc 12.3 | Not readable |
| #3A369D text on white | 9.56:1 | AAA | Lc 91.6 | Preferred for body text |
| #3A369D text on black | 2.19:1 | Fails | Lc -10.7 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FD
oklch(93.7% 0.027 276.8)
-
Step 200
200
#D0D6FC
oklch(88.4% 0.053 278.2)
-
Step 300
300
#B2BBFD
oklch(80.9% 0.094 278.1)
-
Step 400
400
#8C95FD
oklch(70.8% 0.151 278.1)
-
Step 500
500
#7276FB
oklch(63.1% 0.194 278)
-
Step 600
600
#5D5AEA
oklch(55.6% 0.211 278)
-
Step 700
700
#4E49CB
oklch(49.1% 0.195 278.2)
-
Step 800
800 (this color)
#3A369D
oklch(40.5% 0.162 278.1)
-
Step 900
900
#353682
oklch(37.8% 0.125 278)
-
Step 950
950
#1F204C
oklch(27% 0.08 278.7)
#3A369D 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) | #0049A0 | 0.059 |
| Deuteranopia (no green cones) | #00419B | 0.052 |
| Tritanopia (no blue cones) | #005064 | 0.135 |
| Achromatopsia (no color) | #454545 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A369D
#3A369D
oklch(40.5% 0.162 278.1)
- #554900
#554900
oklch(40.5% 0.084 98.4)
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 #3A369D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.037
- Sapphire #2138AB ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.043
- Indigo Blue #3A18B1 ΔE 0.056
- Cobalt #1E488F ΔE 0.057
- Imperial Purple #480CA8 ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.074
Use #3A369D 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.