#3A5AAC
Closest named color: Denim Blue (#3B5B92). oklch(48.7% 0.136 265.6), rgb(58, 90, 172).
Aa
White text reads best on this color (6.48:1).
About this color
#3A5AAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.136 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.043 away. White text reads best on it, at 6.48:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #3A5AAC |
| RGB | rgb(58, 90, 172) |
| HSL | hsl(223, 50%, 45%) |
| OKLCH | oklch(48.7% 0.136 265.6) |
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 #3A5AAC | 6.48:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #3A5AAC | 3.23:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #3A5AAC text on white | 6.48:1 | AA | Lc 81.9 | Fine for body text |
| #3A5AAC text on black | 3.23:1 | AA large text | Lc -20.0 | 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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#ACC0EC
oklch(80.8% 0.066 265.8)
-
Step 400
400
#819FE3
oklch(70.7% 0.106 265.6)
-
Step 500
500
#6286DB
oklch(63.2% 0.135 265.4)
-
Step 600
600
#4A6EC8
oklch(55.7% 0.145 265.5)
-
Step 700
700 (this color)
#3A5AAC
oklch(48.7% 0.136 265.6)
-
Step 800
800
#314B8C
oklch(42.7% 0.112 265.5)
-
Step 900
900
#2B3F70
oklch(37.7% 0.088 265.7)
-
Step 950
950
#192542
oklch(27% 0.057 265.8)
#3A5AAC 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) | #3064AF | 0.027 |
| Deuteranopia (no green cones) | #1959AA | 0.028 |
| Tritanopia (no blue cones) | #006D7A | 0.114 |
| Achromatopsia (no color) | #5E5E5E | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5AAC
#3A5AAC
oklch(48.7% 0.136 265.6)
- #795A00
#795A00
oklch(48.7% 0.1 85.2)
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 #3A5AAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.046
- French Blue #436BAD ΔE 0.050
- Dusk Blue #26538D ΔE 0.058
- Twilight #4E518B ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.061
- Denim #3B638C ΔE 0.062
Use #3A5AAC 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.