#4067CC
Closest named color: Royal Blue (#4169E1). oklch(54% 0.163 265.4), rgb(64, 103, 204).
Aa
White text reads best on this color (5.21:1).
About this color
#4067CC is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.163 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. White text reads best on it, at 5.21:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.03:1 |
| White text | 5.21:1 |
Values
| HEX | #4067CC |
| RGB | rgb(64, 103, 204) |
| HSL | hsl(223, 58%, 53%) |
| OKLCH | oklch(54% 0.163 265.4) |
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 #4067CC | 5.21:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #4067CC | 4.03:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #4067CC text on white | 5.21:1 | AA | Lc 75.5 | Fine for body text |
| #4067CC text on black | 4.03:1 | AA large text | Lc -26.2 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F5
oklch(88.4% 0.041 265.7)
-
Step 300
300
#AAC0F1
oklch(80.8% 0.074 265.9)
-
Step 400
400
#7D9EEA
oklch(70.6% 0.118 265.6)
-
Step 500
500
#5D84E3
oklch(63% 0.15 265.5)
-
Step 600
600 (this color)
#4067CC
oklch(54% 0.163 265.4)
-
Step 700
700
#3659B5
oklch(49% 0.151 265.5)
-
Step 800
800
#2D4A93
oklch(42.8% 0.125 265.2)
-
Step 900
900
#283E75
oklch(37.6% 0.098 265.5)
-
Step 950
950
#182544
oklch(27% 0.061 265.4)
#4067CC 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) | #2E73D0 | 0.032 |
| Deuteranopia (no green cones) | #0066CA | 0.037 |
| Tritanopia (no blue cones) | #007F90 | 0.132 |
| Achromatopsia (no color) | #6D6D6D | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4067CC
#4067CC
oklch(54% 0.163 265.4)
- #8C6900
#8C6900
oklch(54.1% 0.111 85.5)
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 #4067CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Warm Blue #4B57DB ΔE 0.046
- Mid Blue #276AB3 ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.050
- French Blue #436BAD ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
- Iris #6258C4 ΔE 0.053
- Neon Blue #4361EE ΔE 0.055
Use #4067CC 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.