#4065BD
Closest named color: Mid Blue (#276AB3). oklch(52.6% 0.144 264.7), rgb(64, 101, 189).
Aa
White text reads best on this color (5.50:1).
About this color
#4065BD is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.144 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.030 away. White text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #4065BD |
| RGB | rgb(64, 101, 189) |
| HSL | hsl(222, 49%, 50%) |
| OKLCH | oklch(52.6% 0.144 264.7) |
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 #4065BD | 5.50:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #4065BD | 3.81:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #4065BD text on white | 5.50:1 | AA | Lc 77.2 | Fine for body text |
| #4065BD text on black | 3.81:1 | AA large text | Lc -24.6 | 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 600.
-
Step 50
50
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CDD9F2
oklch(88.4% 0.037 265.1)
-
Step 300
300
#ACC1EC
oklch(81% 0.065 264.5)
-
Step 400
400
#809FE2
oklch(70.6% 0.105 264.8)
-
Step 500
500
#6186DA
oklch(63.1% 0.134 264.9)
-
Step 600
600 (this color)
#4065BD
oklch(52.6% 0.144 264.7)
-
Step 700
700
#3A5CAC
oklch(49.2% 0.134 264.6)
-
Step 800
800
#304B8B
oklch(42.6% 0.111 264.9)
-
Step 900
900
#2A3F6F
oklch(37.6% 0.087 264.8)
-
Step 950
950
#192541
oklch(26.9% 0.055 265.3)
#4065BD 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) | #396FC0 | 0.026 |
| Deuteranopia (no green cones) | #2163BB | 0.028 |
| Tritanopia (no blue cones) | #007988 | 0.119 |
| Achromatopsia (no color) | #696969 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4065BD
#4065BD
oklch(52.6% 0.144 264.7)
- #876400
#876400
oklch(52.5% 0.108 84.5)
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 #4065BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.030
- French Blue #436BAD ΔE 0.033
- Windows Blue #3778BF ΔE 0.051
- Iris #6258C4 ΔE 0.053
- Royal Blue #4169E1 ΔE 0.056
- Flat Blue #3C73A8 ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.060
- Warm Blue #4B57DB ΔE 0.061
Use #4065BD 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.