#426BA6
Closest named color: French Blue (#436BAD). oklch(52.5% 0.104 257.5), rgb(66, 107, 166).
Aa
White text reads best on this color (5.40:1).
About this color
#426BA6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.104 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.011 away. White text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #426BA6 |
| RGB | rgb(66, 107, 166) |
| HSL | hsl(215, 43%, 45%) |
| OKLCH | oklch(52.5% 0.104 257.5) |
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 #426BA6 | 5.40:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #426BA6 | 3.88:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #426BA6 text on white | 5.40:1 | AA | Lc 76.8 | Fine for body text |
| #426BA6 text on black | 3.88:1 | AA large text | Lc -25.0 | 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
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2DF
oklch(80.8% 0.047 257.6)
-
Step 400
400
#83A2D0
oklch(70.6% 0.076 258.1)
-
Step 500
500
#648BC3
oklch(63.1% 0.096 257.4)
-
Step 600
600 (this color)
#426BA6
oklch(52.5% 0.104 257.5)
-
Step 700
700
#3C6197
oklch(49.1% 0.097 257.8)
-
Step 800
800
#324F7B
oklch(42.6% 0.081 258.5)
-
Step 900
900
#2C4263
oklch(37.7% 0.063 258.3)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#426BA6 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) | #526FA8 | 0.023 |
| Deuteranopia (no green cones) | #4566A5 | 0.014 |
| Tritanopia (no blue cones) | #007881 | 0.088 |
| Achromatopsia (no color) | #6A6A6A | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #426BA6
#426BA6
oklch(52.5% 0.104 257.5)
- #8B610F
#8B610F
oklch(52.4% 0.104 77.5)
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 #426BA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.011
- Flat Blue #3C73A8 ΔE 0.022
- Muted Blue #3B719F ΔE 0.023
- Mid Blue #276AB3 ΔE 0.031
- Dull Blue #49759C ΔE 0.038
- Dusky Blue #475F94 ΔE 0.039
- Ocean Blue #03719C ΔE 0.044
- Denim #3B638C ΔE 0.045
Use #426BA6 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.