#3D5FA9
Closest named color: Mid Blue (#276AB3). oklch(49.8% 0.125 263.9), rgb(61, 95, 169).
Aa
White text reads best on this color (6.16:1).
About this color
#3D5FA9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.125 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.034 away. White text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #3D5FA9 |
| RGB | rgb(61, 95, 169) |
| HSL | hsl(221, 47%, 45%) |
| OKLCH | oklch(49.8% 0.125 263.9) |
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 #3D5FA9 | 6.16:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #3D5FA9 | 3.40:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #3D5FA9 text on white | 6.16:1 | AA | Lc 80.5 | Fine for body text |
| #3D5FA9 text on black | 3.40:1 | AA large text | Lc -21.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F0
oklch(88.4% 0.034 265.2)
-
Step 300
300
#ADC1E9
oklch(80.9% 0.061 264.2)
-
Step 400
400
#82A0DD
oklch(70.7% 0.096 263.9)
-
Step 500
500
#6387D4
oklch(63.1% 0.123 264.2)
-
Step 600
600
#4A70C1
oklch(55.7% 0.133 263.7)
-
Step 700
700 (this color)
#3D5FA9
oklch(49.8% 0.125 263.9)
-
Step 800
800
#314C87
oklch(42.6% 0.103 264)
-
Step 900
900
#2B406C
oklch(37.7% 0.08 263.7)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#3D5FA9 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) | #3D67AC | 0.022 |
| Deuteranopia (no green cones) | #2C5DA7 | 0.019 |
| Tritanopia (no blue cones) | #00707C | 0.105 |
| Achromatopsia (no color) | #616161 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5FA9
#3D5FA9
oklch(49.8% 0.125 263.9)
- #7E5C00
#7E5C00
oklch(49.7% 0.102 83.4)
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 #3D5FA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.034
- French Blue #436BAD ΔE 0.035
- Dusky Blue #475F94 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.037
- Denim #3B638C ΔE 0.051
- Peacock Blue #016795 ΔE 0.056
- Muted Blue #3B719F ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.057
Use #3D5FA9 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.