#4C6AC3
Closest named color: French Blue (#436BAD). oklch(54.6% 0.143 267.5), rgb(76, 106, 195).
Aa
White text reads best on this color (5.05:1).
About this color
#4C6AC3 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.143 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.037 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #4C6AC3 |
| RGB | rgb(76, 106, 195) |
| HSL | hsl(225, 50%, 53%) |
| OKLCH | oklch(54.6% 0.143 267.5) |
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 #4C6AC3 | 5.05:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #4C6AC3 | 4.15:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #4C6AC3 text on white | 5.05:1 | AA | Lc 74.7 | Content text, not long reading |
| #4C6AC3 text on black | 4.15:1 | AA large text | Lc -27.1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AEC0EB
oklch(80.9% 0.064 267.2)
-
Step 400
400
#849EE1
oklch(70.6% 0.103 267.5)
-
Step 500
500
#6685D9
oklch(63.1% 0.132 267.3)
-
Step 600
600 (this color)
#4C6AC3
oklch(54.6% 0.143 267.5)
-
Step 700
700
#405BAB
oklch(49.2% 0.132 267.4)
-
Step 800
800
#354A8B
oklch(42.7% 0.111 268)
-
Step 900
900
#2E3F6F
oklch(37.8% 0.085 267.5)
-
Step 950
950
#1B2541
oklch(27% 0.054 267.8)
#4C6AC3 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) | #4074C6 | 0.027 |
| Deuteranopia (no green cones) | #2D6AC1 | 0.030 |
| Tritanopia (no blue cones) | #007E8D | 0.123 |
| Achromatopsia (no color) | #6F6F6F | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C6AC3
#4C6AC3
oklch(54.6% 0.143 267.5)
- #8C6B00
#8C6B00
oklch(54.6% 0.112 87.2)
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 #4C6AC3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.037
- Windows Blue #3778BF ΔE 0.042
- Mid Blue #276AB3 ΔE 0.044
- Royal Blue #4169E1 ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.048
- Iris #6258C4 ΔE 0.051
- Flat Blue #3C73A8 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.057
Use #4C6AC3 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.