#4070DE
Closest named color: Royal Blue (#4169E1). oklch(57.1% 0.176 263.9), rgb(64, 112, 222).
Aa
Black text reads best on this color (4.59:1).
About this color
#4070DE is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.176 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.018 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #4070DE |
| RGB | rgb(64, 112, 222) |
| HSL | hsl(222, 71%, 56%) |
| OKLCH | oklch(57.1% 0.176 263.9) |
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 #4070DE | 4.57:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #4070DE | 4.59:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #4070DE text on white | 4.57:1 | AA | Lc 71.4 | Content text, not long reading |
| #4070DE text on black | 4.59:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF7
oklch(88.5% 0.044 262.4)
-
Step 300
300
#A7C1F5
oklch(81% 0.079 264)
-
Step 400
400
#789FF0
oklch(70.8% 0.127 263.9)
-
Step 500
500
#5684EA
oklch(63% 0.162 264.1)
-
Step 600
600 (this color)
#4070DE
oklch(57.1% 0.176 263.9)
-
Step 700
700
#2E59BC
oklch(49.1% 0.164 263.8)
-
Step 800
800
#274998
oklch(42.7% 0.136 264)
-
Step 900
900
#243E79
oklch(37.7% 0.106 264.1)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#4070DE 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) | #2F7DE2 | 0.033 |
| Deuteranopia (no green cones) | #006FDC | 0.033 |
| Tritanopia (no blue cones) | #008A9C | 0.141 |
| Achromatopsia (no color) | #767676 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4070DE
#4070DE
oklch(57.1% 0.176 263.9)
- #987000
#987000
oklch(57% 0.117 83.7)
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 #4070DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.018
- Cerulean Blue #056EEE ΔE 0.039
- Neon Blue #4361EE ΔE 0.044
- Clear Blue #247AFD ΔE 0.051
- Windows Blue #3778BF ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.059
- Azul #1D5DEC ΔE 0.062
Use #4070DE 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.