#426FDA
Closest named color: Royal Blue (#4169E1). oklch(56.7% 0.171 264.4), rgb(66, 111, 218).
Aa
White text reads best on this color (4.64:1).
About this color
#426FDA is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.171 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.019 away. White text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.51:1 |
| White text | 4.64:1 |
Values
| HEX | #426FDA |
| RGB | rgb(66, 111, 218) |
| HSL | hsl(222, 67%, 56%) |
| OKLCH | oklch(56.7% 0.171 264.4) |
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 #426FDA | 4.64:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #426FDA | 4.51:1 | AA | Lc 32.2 | Non-text elements, placeholder text |
| #426FDA text on white | 4.64:1 | AA | Lc 71.9 | Content text, not long reading |
| #426FDA text on black | 4.51:1 | AA | Lc -29.8 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBD9F6
oklch(88.4% 0.043 265)
-
Step 300
300
#A8C1F3
oklch(81% 0.076 264)
-
Step 400
400
#7A9FEE
oklch(70.8% 0.123 264.4)
-
Step 500
500
#5884E8
oklch(63% 0.158 264.4)
-
Step 600
600 (this color)
#426FDA
oklch(56.7% 0.171 264.4)
-
Step 700
700
#3159BA
oklch(49.1% 0.16 264.4)
-
Step 800
800
#294996
oklch(42.6% 0.132 264.5)
-
Step 900
900
#253E78
oklch(37.7% 0.104 264.4)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#426FDA 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) | #327CDE | 0.033 |
| Deuteranopia (no green cones) | #006ED8 | 0.036 |
| Tritanopia (no blue cones) | #00889A | 0.138 |
| Achromatopsia (no color) | #747474 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #426FDA
#426FDA
oklch(56.7% 0.171 264.4)
- #967000
#967000
oklch(56.8% 0.116 84.9)
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 #426FDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.019
- Cerulean Blue #056EEE ΔE 0.044
- Neon Blue #4361EE ΔE 0.047
- Windows Blue #3778BF ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.054
- Warm Blue #4B57DB ΔE 0.057
- Clear Blue #247AFD ΔE 0.058
- Azul #1D5DEC ΔE 0.063
Use #426FDA 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.