#4361DD
Closest named color: Royal Blue (#4169E1). oklch(54.2% 0.192 268.8), rgb(67, 97, 221).
Aa
White text reads best on this color (5.25:1).
About this color
#4361DD is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.192 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.020 away. White text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #4361DD |
| RGB | rgb(67, 97, 221) |
| HSL | hsl(228, 69%, 56%) |
| OKLCH | oklch(54.2% 0.192 268.8) |
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 #4361DD | 5.25:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #4361DD | 3.99:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #4361DD text on white | 5.25:1 | AA | Lc 75.7 | Fine for body text |
| #4361DD text on black | 3.99:1 | AA large text | Lc -26.1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9FA
oklch(88.6% 0.048 268.4)
-
Step 300
300
#A9BFF9
oklch(80.9% 0.086 268.4)
-
Step 400
400
#7D9BF7
oklch(70.6% 0.139 269)
-
Step 500
500
#5E7FF3
oklch(63% 0.177 268.9)
-
Step 600
600 (this color)
#4361DD
oklch(54.2% 0.192 268.8)
-
Step 700
700
#3953C4
oklch(49.1% 0.179 269)
-
Step 800
800
#2F459F
oklch(42.8% 0.148 268.9)
-
Step 900
900
#293B7E
oklch(37.7% 0.115 269)
-
Step 950
950
#18234A
oklch(27% 0.074 269.2)
#4361DD 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) | #0073E1 | 0.051 |
| Deuteranopia (no green cones) | #0065DB | 0.038 |
| Tritanopia (no blue cones) | #007F95 | 0.155 |
| Achromatopsia (no color) | #6C6C6C | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4361DD
#4361DD
oklch(54.2% 0.192 268.8)
- #896B00
#896B00
oklch(54.2% 0.111 89.2)
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 #4361DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.020
- Warm Blue #4B57DB ΔE 0.023
- Neon Blue #4361EE ΔE 0.026
- Azul #1D5DEC ΔE 0.040
- Cerulean Blue #056EEE ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.048
- Iris #6258C4 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.057
Use #4361DD 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.