#426EB0
Closest named color: French Blue (#436BAD). oklch(53.8% 0.115 258.3), rgb(66, 110, 176).
Aa
White text reads best on this color (5.13:1).
About this color
#426EB0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.115 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.009 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #426EB0 |
| RGB | rgb(66, 110, 176) |
| HSL | hsl(216, 45%, 47%) |
| OKLCH | oklch(53.8% 0.115 258.3) |
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 #426EB0 | 5.13:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #426EB0 | 4.08:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #426EB0 text on white | 5.13:1 | AA | Lc 75.2 | Fine for body text |
| #426EB0 text on black | 4.08:1 | AA large text | Lc -26.5 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ACC2E3
oklch(80.8% 0.053 258.4)
-
Step 400
400
#81A2D4
oklch(70.7% 0.082 258.5)
-
Step 500
500
#618AC9
oklch(63% 0.106 258.7)
-
Step 600
600 (this color)
#426EB0
oklch(53.8% 0.115 258.3)
-
Step 700
700
#38609D
oklch(49% 0.108 258.6)
-
Step 800
800
#2F4F7F
oklch(42.7% 0.089 258.3)
-
Step 900
900
#2A4266
oklch(37.7% 0.069 258.3)
-
Step 950
950
#19273C
oklch(27.1% 0.044 258.3)
#426EB0 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) | #5273B3 | 0.024 |
| Deuteranopia (no green cones) | #4269AF | 0.014 |
| Tritanopia (no blue cones) | #007D86 | 0.097 |
| Achromatopsia (no color) | #6E6E6E | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #426EB0
#426EB0
oklch(53.8% 0.115 258.3)
- #916500
#916500
oklch(53.9% 0.112 78.8)
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 #426EB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.009
- Flat Blue #3C73A8 ΔE 0.022
- Mid Blue #276AB3 ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Windows Blue #3778BF ΔE 0.032
- Nice Blue #107AB0 ΔE 0.042
- Dull Blue #49759C ΔE 0.042
- Ocean Blue #03719C ΔE 0.052
Use #426EB0 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.