#3A56D1
Closest named color: Warm Blue (#4B57DB). oklch(50.8% 0.192 268.7), rgb(58, 86, 209).
Aa
White text reads best on this color (6.11:1).
About this color
#3A56D1 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.192 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.026 away. White text reads best on it, at 6.11:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.43:1 |
| White text | 6.11:1 |
Values
| HEX | #3A56D1 |
| RGB | rgb(58, 86, 209) |
| HSL | hsl(229, 62%, 52%) |
| OKLCH | oklch(50.8% 0.192 268.7) |
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 #3A56D1 | 6.11:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #3A56D1 | 3.43:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #3A56D1 text on white | 6.11:1 | AA | Lc 80.0 | Fine for body text |
| #3A56D1 text on black | 3.43:1 | AA large text | Lc -21.8 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD9FC
oklch(88.6% 0.051 268.1)
-
Step 300
300
#A8BFFD
oklch(81% 0.092 268.6)
-
Step 400
400
#7A9BFD
oklch(70.8% 0.148 268.4)
-
Step 500
500
#5B7EFB
oklch(63.2% 0.19 268.7)
-
Step 600
600
#4363EA
oklch(55.6% 0.207 268.6)
-
Step 700
700 (this color)
#3A56D1
oklch(50.8% 0.192 268.7)
-
Step 800
800
#2C43A4
oklch(42.6% 0.159 268.6)
-
Step 900
900
#273A82
oklch(37.7% 0.123 268.7)
-
Step 950
950
#17234C
oklch(27.1% 0.077 268.6)
#3A56D1 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) | #0069D5 | 0.050 |
| Deuteranopia (no green cones) | #005BCF | 0.033 |
| Tritanopia (no blue cones) | #00758B | 0.153 |
| Achromatopsia (no color) | #626262 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A56D1
#3A56D1
oklch(50.8% 0.192 268.7)
- #7D6100
#7D6100
oklch(50.7% 0.104 88.9)
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 #3A56D1, closest first.
No curated palette has a color within ΔE 0.04 of #3A56D1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.026
- Azul #1D5DEC ΔE 0.047
- Royal Blue #4169E1 ΔE 0.053
- Neon Blue #4361EE ΔE 0.053
- Iris #6258C4 ΔE 0.057
- Blue Blue #2242C7 ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.065
Use #3A56D1 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.