#426CB2
Closest named color: French Blue (#436BAD). oklch(53.5% 0.12 260.1), rgb(66, 108, 178).
Aa
White text reads best on this color (5.22:1).
About this color
#426CB2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.120 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.008 away. White text reads best on it, at 5.22:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #426CB2 |
| RGB | rgb(66, 108, 178) |
| HSL | hsl(218, 46%, 48%) |
| OKLCH | oklch(53.5% 0.12 260.1) |
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 #426CB2 | 5.22:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #426CB2 | 4.01:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #426CB2 text on white | 5.22:1 | AA | Lc 75.7 | Fine for body text |
| #426CB2 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ADC2E4
oklch(81% 0.053 260)
-
Step 400
400
#81A2D7
oklch(70.8% 0.086 259.7)
-
Step 500
500
#618ACC
oklch(63.2% 0.11 259.6)
-
Step 600
600 (this color)
#426CB2
oklch(53.5% 0.12 260.1)
-
Step 700
700
#39609F
oklch(49.2% 0.111 259.6)
-
Step 800
800
#304E81
oklch(42.6% 0.092 260.4)
-
Step 900
900
#2A4168
oklch(37.6% 0.073 260.4)
-
Step 950
950
#19263D
oklch(26.9% 0.047 261.3)
#426CB2 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) | #4D72B5 | 0.022 |
| Deuteranopia (no green cones) | #3E68B1 | 0.013 |
| Tritanopia (no blue cones) | #007C86 | 0.101 |
| Achromatopsia (no color) | #6C6C6C | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #426CB2
#426CB2
oklch(53.5% 0.12 260.1)
- #8E6500
#8E6500
oklch(53.5% 0.111 80.7)
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 #426CB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.008
- Mid Blue #276AB3 ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.028
- Windows Blue #3778BF ΔE 0.035
- Muted Blue #3B719F ΔE 0.037
- Nice Blue #107AB0 ΔE 0.047
- Dull Blue #49759C ΔE 0.049
- Dusky Blue #475F94 ΔE 0.054
Use #426CB2 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.