#3B5FCE
Closest named color: Warm Blue (#4B57DB). oklch(52.3% 0.177 266.6), rgb(59, 95, 206).
Aa
White text reads best on this color (5.65:1).
About this color
#3B5FCE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.177 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.032 away. White text reads best on it, at 5.65:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.71:1 |
| White text | 5.65:1 |
Values
| HEX | #3B5FCE |
| RGB | rgb(59, 95, 206) |
| HSL | hsl(225, 60%, 52%) |
| OKLCH | oklch(52.3% 0.177 266.6) |
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 #3B5FCE | 5.65:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #3B5FCE | 3.71:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #3B5FCE text on white | 5.65:1 | AA | Lc 77.8 | Fine for body text |
| #3B5FCE text on black | 3.71:1 | AA large text | Lc -23.9 | 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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A7C0F9
oklch(80.9% 0.086 266.1)
-
Step 400
400
#799DF6
oklch(70.8% 0.137 266.3)
-
Step 500
500
#5981F2
oklch(63.1% 0.175 266.7)
-
Step 600
600
#4067E1
oklch(55.5% 0.191 266.7)
-
Step 700
700 (this color)
#3B5FCE
oklch(52.3% 0.177 266.6)
-
Step 800
800
#2A469E
oklch(42.6% 0.147 266.7)
-
Step 900
900
#263C7D
oklch(37.7% 0.114 266.8)
-
Step 950
950
#162449
oklch(27% 0.071 266.2)
#3B5FCE 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) | #026ED2 | 0.043 |
| Deuteranopia (no green cones) | #0061CC | 0.032 |
| Tritanopia (no blue cones) | #007A8D | 0.142 |
| Achromatopsia (no color) | #676767 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B5FCE
#3B5FCE
oklch(52.3% 0.177 266.6)
- #856400
#856400
oklch(52.2% 0.107 85.9)
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 #3B5FCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.032
- Royal Blue #4169E1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.050
- Azul #1D5DEC ΔE 0.051
- Iris #6258C4 ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.055
- Mid Blue #276AB3 ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.061
Use #3B5FCE 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.