#3761C3
Closest named color: Mid Blue (#276AB3). oklch(51.7% 0.161 264.1), rgb(55, 97, 195).
Aa
White text reads best on this color (5.73:1).
About this color
#3761C3 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.161 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.039 away. White text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.66:1 |
| White text | 5.73:1 |
Values
| HEX | #3761C3 |
| RGB | rgb(55, 97, 195) |
| HSL | hsl(222, 56%, 49%) |
| OKLCH | oklch(51.7% 0.161 264.1) |
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 #3761C3 | 5.73:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #3761C3 | 3.66:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #3761C3 text on white | 5.73:1 | AA | Lc 78.3 | Fine for body text |
| #3761C3 text on black | 3.66:1 | AA large text | Lc -23.5 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF7
oklch(88.6% 0.043 263.7)
-
Step 300
300
#A7C1F4
oklch(80.9% 0.078 263.6)
-
Step 400
400
#799FEE
oklch(70.8% 0.124 263.9)
-
Step 500
500
#5784E9
oklch(63% 0.16 264.2)
-
Step 600
600
#3E6CD7
oklch(55.7% 0.172 264.1)
-
Step 700
700 (this color)
#3761C3
oklch(51.7% 0.161 264.1)
-
Step 800
800
#284997
oklch(42.6% 0.134 264.2)
-
Step 900
900
#253E78
oklch(37.7% 0.104 264.4)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#3761C3 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) | #276DC7 | 0.031 |
| Deuteranopia (no green cones) | #0060C1 | 0.031 |
| Tritanopia (no blue cones) | #007889 | 0.127 |
| Achromatopsia (no color) | #666666 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3761C3
#3761C3
oklch(51.7% 0.161 264.1)
- #856200
#856200
oklch(51.8% 0.106 84.1)
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 #3761C3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.039
- Warm Blue #4B57DB ΔE 0.049
- French Blue #436BAD ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Iris #6258C4 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.063
- Windows Blue #3778BF ΔE 0.064
- Azul #1D5DEC ΔE 0.067
Use #3761C3 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.