#4056BF
Closest named color: Warm Blue (#4B57DB). oklch(49.6% 0.166 270.3), rgb(64, 86, 191).
Aa
White text reads best on this color (6.36:1).
About this color
#4056BF is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.166 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.046 away. White text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.30:1 |
| White text | 6.36:1 |
Values
| HEX | #4056BF |
| RGB | rgb(64, 86, 191) |
| HSL | hsl(230, 50%, 50%) |
| OKLCH | oklch(49.6% 0.166 270.3) |
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 #4056BF | 6.36:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #4056BF | 3.30:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #4056BF text on white | 6.36:1 | AA | Lc 81.2 | Fine for body text |
| #4056BF text on black | 3.30:1 | AA large text | Lc -20.6 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ACBFF5
oklch(80.9% 0.079 269.5)
-
Step 400
400
#829BF1
oklch(70.6% 0.129 270.5)
-
Step 500
500
#6480EC
oklch(63.1% 0.165 270.2)
-
Step 600
600
#4D66DA
oklch(55.5% 0.179 270.4)
-
Step 700
700 (this color)
#4056BF
oklch(49.6% 0.166 270.3)
-
Step 800
800
#344699
oklch(42.8% 0.137 270.4)
-
Step 900
900
#2C3C7A
oklch(37.8% 0.107 269.8)
-
Step 950
950
#1A2347
oklch(26.9% 0.068 270.7)
#4056BF 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) | #0065C3 | 0.048 |
| Deuteranopia (no green cones) | #005ABD | 0.041 |
| Tritanopia (no blue cones) | #006F82 | 0.137 |
| Achromatopsia (no color) | #5F5F5F | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4056BF
#4056BF
oklch(49.6% 0.166 270.3)
- #785F00
#785F00
oklch(49.6% 0.101 90.8)
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 #4056BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.046
- Iris #6258C4 ΔE 0.049
- Mid Blue #276AB3 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Blue Blue #2242C7 ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.066
Use #4056BF 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.