#4473DE
Closest named color: Royal Blue (#4169E1). oklch(57.9% 0.171 264), rgb(68, 115, 222).
Aa
Black text reads best on this color (4.75:1).
About this color
#4473DE is a medium-dark, vivid blue. In OKLCH its lightness is 58%, 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 0.027 away. Black text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #4473DE |
| RGB | rgb(68, 115, 222) |
| HSL | hsl(222, 70%, 57%) |
| OKLCH | oklch(57.9% 0.171 264) |
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 #4473DE | 4.41:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #4473DE | 4.75:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #4473DE text on white | 4.41:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #4473DE text on black | 4.75:1 | AA | Lc -31.4 | 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
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A7C1F3
oklch(80.9% 0.077 263.3)
-
Step 400
400
#799FEE
oklch(70.8% 0.124 263.9)
-
Step 500
500
#5785E8
oklch(63.2% 0.157 263.7)
-
Step 600
600 (this color)
#4473DE
oklch(57.9% 0.171 264)
-
Step 700
700
#3059BA
oklch(49.1% 0.16 264.1)
-
Step 800
800
#284A96
oklch(42.8% 0.131 263.7)
-
Step 900
900
#253E78
oklch(37.7% 0.104 264.4)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#4473DE 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) | #387FE2 | 0.031 |
| Deuteranopia (no green cones) | #0771DC | 0.036 |
| Tritanopia (no blue cones) | #008C9E | 0.138 |
| Achromatopsia (no color) | #787878 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4473DE
#4473DE
oklch(57.9% 0.171 264)
- #9B7300
#9B7300
oklch(58% 0.119 84.2)
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 #4473DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.027
- Cerulean Blue #056EEE ΔE 0.045
- Clear Blue #247AFD ΔE 0.050
- Neon Blue #4361EE ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.060
- Cornflower #6A79F7 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.067
Use #4473DE 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.