#426ABB
Closest named color: French Blue (#436BAD). oklch(53.6% 0.135 262.9), rgb(66, 106, 187).
Aa
White text reads best on this color (5.23:1).
About this color
#426ABB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.135 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.023 away. White text reads best on it, at 5.23:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #426ABB |
| RGB | rgb(66, 106, 187) |
| HSL | hsl(220, 48%, 50%) |
| OKLCH | oklch(53.6% 0.135 262.9) |
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 #426ABB | 5.23:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #426ABB | 4.01:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #426ABB text on white | 5.23:1 | AA | Lc 75.7 | Fine for body text |
| #426ABB text on black | 4.01:1 | AA large text | Lc -26.0 | 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 600.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ACC1E9
oklch(80.9% 0.061 263.2)
-
Step 400
400
#80A0DE
oklch(70.6% 0.098 263.1)
-
Step 500
500
#6188D4
oklch(63.2% 0.123 262.7)
-
Step 600
600 (this color)
#426ABB
oklch(53.6% 0.135 262.9)
-
Step 700
700
#395DA7
oklch(49% 0.126 263)
-
Step 800
800
#2F4D87
oklch(42.7% 0.103 262.3)
-
Step 900
900
#2A406C
oklch(37.6% 0.081 263)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#426ABB 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) | #4472BE | 0.022 |
| Deuteranopia (no green cones) | #3167B9 | 0.020 |
| Tritanopia (no blue cones) | #007C89 | 0.112 |
| Achromatopsia (no color) | #6C6C6C | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #426ABB
#426ABB
oklch(53.6% 0.135 262.9)
- #8C6600
#8C6600
oklch(53.5% 0.11 82.9)
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 #426ABB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.023
- Mid Blue #276AB3 ΔE 0.027
- Windows Blue #3778BF ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.043
- Muted Blue #3B719F ΔE 0.053
- Nice Blue #107AB0 ΔE 0.057
- Royal Blue #4169E1 ΔE 0.059
- Iris #6258C4 ΔE 0.061
Use #426ABB 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.